Merge pull request #4045

a3e192a replaced MINE_ with ISMINE_ (JaSK)
53a2148 fixed bug where validateaddress doesn't display information (JaSK)
f28707a fixed bug in ListReceived() (JaSK)
519dd1c Added MINE_ALL = (spendable|watchonly) (JaSK)
23b0506 Fixed some stuff in TransactionDesc (JaSK)
80dda36 removed default argument values for ismine filter (JaSK)
d5087d1 Use script matching rather than destination matching for watch-only. (Pieter Wuille)
0fa2f88 added includedWatchonly argument to listreceivedbyaddress/...account (JaSK)
f87ba3d added includeWatchonly argument to 'gettransaction' because it affects balance calculation (JaSK)
a5c6c5d fixed tiny glitch and improved readability like laanwj suggested (JaSK)
d7d5d23 Added argument to listtransactions and listsinceblock to include watchonly addresses (JaSK)
952877e Showing 'involvesWatchonly' property for transactions returned by 'listtransactions' and 'listsinceblock'. It is only appended when the transaction involves a watchonly address. (JaSK)
83f3543 Added argument to listaccounts to include watchonly addresses (JaSK)
d4640d7 Added argument to getbalance to include watchonly addresses and fixed errors in balance calculation. (JaSK)
d2692f6 Watchonly transactions are marked in transaction history (JaSK)
ffd40da Watchonly balances are shown separately in gui. (JaSK)
2935b21 qt: Hide unspendable outputs in coin control (Wladimir J. van der Laan)
c898846 Add support for watch-only addresses (Pieter Wuille)

27 files changed, 994 insertions, 356 deletions

diff --git a/src/keystore.cpp b/src/keystore.cpp
index 594e0c61da..2a4c88d565 100644
--- a/src/keystore.cpp
+++ b/src/keystore.cpp
@@ -59,3 +59,15 @@ bool CBasicKeyStore::GetCScript(const CScriptID &hash, CScript& redeemScriptOut)
     return false;
 }
 
+bool CBasicKeyStore::AddWatchOnly(const CScript &dest)
+{
+    LOCK(cs_KeyStore);
+    setWatchOnly.insert(dest);
+    return true;
+}
+
+bool CBasicKeyStore::HaveWatchOnly(const CScript &dest) const
+{
+    LOCK(cs_KeyStore);
+    return setWatchOnly.count(dest) > 0;
+}
diff --git a/src/keystore.h b/src/keystore.h
index 79d8661aca..72411a1387 100644
--- a/src/keystore.h
+++ b/src/keystore.h
@@ -8,11 +8,21 @@
 
 #include "key.h"
 #include "sync.h"
+#include "script.h"     // for CNoDestination
 
 #include <boost/signals2/signal.hpp>
+#include <boost/variant.hpp>
 
 class CScript;
 
+/** A txout script template with a specific destination. It is either:
+ *  * CNoDestination: no destination set
+ *  * CKeyID: TX_PUBKEYHASH destination
+ *  * CScriptID: TX_SCRIPTHASH destination
+ *  A CTxDestination is the internal data type encoded in a CBitcoinAddress
+ */
+typedef boost::variant<CNoDestination, CKeyID, CScriptID> CTxDestination;
+
 /** A virtual base class for key stores */
 class CKeyStore
 {
@@ -36,10 +46,15 @@ public:
     virtual bool AddCScript(const CScript& redeemScript) =0;
     virtual bool HaveCScript(const CScriptID &hash) const =0;
     virtual bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const =0;
+
+    // Support for Watch-only addresses
+    virtual bool AddWatchOnly(const CScript &dest) =0;
+    virtual bool HaveWatchOnly(const CScript &dest) const =0;
 };
 
 typedef std::map<CKeyID, CKey> KeyMap;
 typedef std::map<CScriptID, CScript > ScriptMap;
+typedef std::set<CScript> WatchOnlySet;
 
 /** Basic key store, that keeps keys in an address->secret map */
 class CBasicKeyStore : public CKeyStore
@@ -47,6 +62,7 @@ class CBasicKeyStore : public CKeyStore
 protected:
     KeyMap mapKeys;
     ScriptMap mapScripts;
+    WatchOnlySet setWatchOnly;
 
 public:
     bool AddKeyPubKey(const CKey& key, const CPubKey &pubkey);
@@ -88,6 +104,9 @@ public:
     virtual bool AddCScript(const CScript& redeemScript);
     virtual bool HaveCScript(const CScriptID &hash) const;
     virtual bool GetCScript(const CScriptID &hash, CScript& redeemScriptOut) const;
+
+    virtual bool AddWatchOnly(const CScript &dest);
+    virtual bool HaveWatchOnly(const CScript &dest) const;
 };
 
 typedef std::vector<unsigned char, secure_allocator<unsigned char> > CKeyingMaterial;
diff --git a/src/qt/forms/overviewpage.ui b/src/qt/forms/overviewpage.ui
index e662912781..8784da5f3e 100644
--- a/src/qt/forms/overviewpage.ui
+++ b/src/qt/forms/overviewpage.ui
@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>573</width>
+    <width>596</width>
     <height>342</height>
    </rect>
   </property>
@@ -46,204 +46,369 @@
           <item>
            <layout class="QHBoxLayout" name="horizontalLayout_4">
             <item>
-             <widget class="QLabel" name="label_5">
-              <property name="font">
-               <font>
-                <weight>75</weight>
-                <bold>true</bold>
-               </font>
-              </property>
-              <property name="text">
-               <string>Wallet</string>
-              </property>
-             </widget>
-            </item>
-            <item>
-             <widget class="QLabel" name="labelWalletStatus">
-              <property name="toolTip">
-               <string>The displayed information may be out of date. Your wallet automatically synchronizes with the Bitcoin network after a connection is established, but this process has not completed yet.</string>
-              </property>
-              <property name="styleSheet">
-               <string notr="true">QLabel { color: red; }</string>
-              </property>
-              <property name="text">
-               <string notr="true">(out of sync)</string>
-              </property>
-              <property name="alignment">
-               <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
-              </property>
-             </widget>
+             <layout class="QHBoxLayout" name="horizontalLayout_7">
+              <item>
+               <widget class="QLabel" name="label_5">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="text">
+                 <string>Wallet</string>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <widget class="QLabel" name="labelWalletStatus">
+                <property name="toolTip">
+                 <string>The displayed information may be out of date. Your wallet automatically synchronizes with the Bitcoin network after a connection is established, but this process has not completed yet.</string>
+                </property>
+                <property name="styleSheet">
+                 <string notr="true">QLabel { color: red; }</string>
+                </property>
+                <property name="text">
+                 <string notr="true">(out of sync)</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+                </property>
+               </widget>
+              </item>
+             </layout>
             </item>
             <item>
-             <spacer name="horizontalSpacer_2">
-              <property name="orientation">
-               <enum>Qt::Horizontal</enum>
-              </property>
-              <property name="sizeHint" stdset="0">
-               <size>
-                <width>40</width>
-                <height>20</height>
-               </size>
-              </property>
-             </spacer>
+             <layout class="QHBoxLayout" name="horizontalLayout_8">
+              <item>
+               <widget class="QLabel" name="labelWatchonly">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="text">
+                 <string>Watchonly:</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignCenter</set>
+                </property>
+               </widget>
+              </item>
+              <item>
+               <spacer name="horizontalSpacer_2">
+                <property name="orientation">
+                 <enum>Qt::Horizontal</enum>
+                </property>
+                <property name="sizeType">
+                 <enum>QSizePolicy::Preferred</enum>
+                </property>
+                <property name="sizeHint" stdset="0">
+                 <size>
+                  <width>40</width>
+                  <height>20</height>
+                 </size>
+                </property>
+               </spacer>
+              </item>
+             </layout>
             </item>
            </layout>
           </item>
           <item>
-          <layout class="QHBoxLayout" name="horizontalLayout_3">
-           <item>
-           <layout class="QFormLayout" name="formLayout_2">
-            <property name="fieldGrowthPolicy">
-             <enum>QFormLayout::AllNonFixedFieldsGrow</enum>
-            </property>
-            <property name="horizontalSpacing">
-             <number>12</number>
-            </property>
-            <property name="verticalSpacing">
-             <number>12</number>
-            </property>
-            <item row="0" column="0">
-             <widget class="QLabel" name="label">
-              <property name="text">
-               <string>Available:</string>
-              </property>
-             </widget>
-            </item>
-            <item row="0" column="1">
-             <widget class="QLabel" name="labelBalance">
-              <property name="font">
-               <font>
-                <weight>75</weight>
-                <bold>true</bold>
-               </font>
-              </property>
-              <property name="cursor">
-               <cursorShape>IBeamCursor</cursorShape>
-              </property>
-              <property name="toolTip">
-               <string>Your current spendable balance</string>
-              </property>
-              <property name="text">
-               <string notr="true">0 BTC</string>
-              </property>
-              <property name="alignment">
-               <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-              </property>
-              <property name="textInteractionFlags">
-               <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
-              </property>
-             </widget>
-            </item>
-            <item row="1" column="0">
-             <widget class="QLabel" name="label_3">
-              <property name="text">
-               <string>Pending:</string>
-              </property>
-             </widget>
-            </item>
-            <item row="1" column="1">
-             <widget class="QLabel" name="labelUnconfirmed">
-              <property name="font">
-               <font>
-                <weight>75</weight>
-                <bold>true</bold>
-               </font>
-              </property>
-              <property name="cursor">
-               <cursorShape>IBeamCursor</cursorShape>
-              </property>
-              <property name="toolTip">
-               <string>Total of transactions that have yet to be confirmed, and do not yet count toward the spendable balance</string>
-              </property>
-              <property name="text">
-               <string notr="true">0 BTC</string>
-              </property>
-              <property name="alignment">
-               <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-              </property>
-              <property name="textInteractionFlags">
-               <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
-              </property>
-             </widget>
-            </item>
-            <item row="2" column="0">
-             <widget class="QLabel" name="labelImmatureText">
-              <property name="text">
-               <string>Immature:</string>
-              </property>
-             </widget>
-            </item>
-            <item row="2" column="1">
-             <widget class="QLabel" name="labelImmature">
-              <property name="font">
-               <font>
-                <weight>75</weight>
-                <bold>true</bold>
-               </font>
-              </property>
-              <property name="toolTip">
-               <string>Mined balance that has not yet matured</string>
-              </property>
-              <property name="text">
-               <string notr="true">0 BTC</string>
-              </property>
-              <property name="alignment">
-               <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-              </property>
-              <property name="textInteractionFlags">
-               <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
-              </property>
-             </widget>
-            </item>
-            <item row="4" column="0">
-             <widget class="QLabel" name="labelTotalText">
-              <property name="text">
-               <string>Total:</string>
-              </property>
-             </widget>
-            </item>
-            <item row="4" column="1">
-             <widget class="QLabel" name="labelTotal">
-              <property name="font">
-               <font>
-                <weight>75</weight>
-                <bold>true</bold>
-               </font>
-              </property>
-              <property name="cursor">
-               <cursorShape>IBeamCursor</cursorShape>
-              </property>
-              <property name="toolTip">
-               <string>Your current total balance</string>
-              </property>
-              <property name="text">
-               <string notr="true">0 BTC</string>
-              </property>
-              <property name="alignment">
-               <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
-              </property>
-              <property name="textInteractionFlags">
-               <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
-              </property>
-             </widget>
+           <layout class="QHBoxLayout" name="horizontalLayout_3">
+            <item>
+             <layout class="QFormLayout" name="formLayout_2">
+              <property name="fieldGrowthPolicy">
+               <enum>QFormLayout::AllNonFixedFieldsGrow</enum>
+              </property>
+              <property name="horizontalSpacing">
+               <number>12</number>
+              </property>
+              <property name="verticalSpacing">
+               <number>12</number>
+              </property>
+              <item row="0" column="0">
+               <widget class="QLabel" name="label">
+                <property name="text">
+                 <string>Available:</string>
+                </property>
+               </widget>
+              </item>
+              <item row="0" column="1">
+               <widget class="QLabel" name="labelBalance">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="cursor">
+                 <cursorShape>IBeamCursor</cursorShape>
+                </property>
+                <property name="toolTip">
+                 <string>Your current spendable balance</string>
+                </property>
+                <property name="text">
+                 <string notr="true">0 BTC</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                </property>
+                <property name="textInteractionFlags">
+                 <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+                </property>
+               </widget>
+              </item>
+              <item row="1" column="0">
+               <widget class="QLabel" name="label_3">
+                <property name="text">
+                 <string>Pending:</string>
+                </property>
+               </widget>
+              </item>
+              <item row="1" column="1">
+               <widget class="QLabel" name="labelUnconfirmed">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="cursor">
+                 <cursorShape>IBeamCursor</cursorShape>
+                </property>
+                <property name="toolTip">
+                 <string>Total of transactions that have yet to be confirmed, and do not yet count toward the spendable balance</string>
+                </property>
+                <property name="text">
+                 <string notr="true">0 BTC</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                </property>
+                <property name="textInteractionFlags">
+                 <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+                </property>
+               </widget>
+              </item>
+              <item row="2" column="0">
+               <widget class="QLabel" name="labelImmatureText">
+                <property name="text">
+                 <string>Immature:</string>
+                </property>
+               </widget>
+              </item>
+              <item row="2" column="1">
+               <widget class="QLabel" name="labelImmature">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="cursor">
+                 <cursorShape>IBeamCursor</cursorShape>
+                </property>
+                <property name="toolTip">
+                 <string>Mined balance that has not yet matured</string>
+                </property>
+                <property name="text">
+                 <string notr="true">0 BTC</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                </property>
+                <property name="textInteractionFlags">
+                 <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+                </property>
+               </widget>
+              </item>
+              <item row="3" column="0" colspan="2">
+               <widget class="Line" name="line">
+                <property name="orientation">
+                 <enum>Qt::Horizontal</enum>
+                </property>
+               </widget>
+              </item>
+              <item row="4" column="0">
+               <widget class="QLabel" name="labelTotalText">
+                <property name="text">
+                 <string>Total:</string>
+                </property>
+               </widget>
+              </item>
+              <item row="4" column="1">
+               <widget class="QLabel" name="labelTotal">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="cursor">
+                 <cursorShape>IBeamCursor</cursorShape>
+                </property>
+                <property name="toolTip">
+                 <string>Your current total balance</string>
+                </property>
+                <property name="text">
+                 <string notr="true">0 BTC</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                </property>
+                <property name="textInteractionFlags">
+                 <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+                </property>
+               </widget>
+              </item>
+             </layout>
             </item>
-            <item row="3" column="0" colspan="2">
-             <widget class="Line" name="line">
-              <property name="orientation">
-               <enum>Qt::Horizontal</enum>
-              </property>
-             </widget>
+            <item>
+             <layout class="QFormLayout" name="formLayout">
+              <property name="fieldGrowthPolicy">
+               <enum>QFormLayout::AllNonFixedFieldsGrow</enum>
+              </property>
+              <property name="horizontalSpacing">
+               <number>12</number>
+              </property>
+              <property name="verticalSpacing">
+               <number>12</number>
+              </property>
+              <item row="0" column="1">
+               <widget class="QLabel" name="labelWatchAvailable">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="cursor">
+                 <cursorShape>IBeamCursor</cursorShape>
+                </property>
+                <property name="toolTip">
+                 <string>Your current balance in watchonly addresses</string>
+                </property>
+                <property name="text">
+                 <string>0 BTC</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                </property>
+                <property name="textInteractionFlags">
+                 <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+                </property>
+               </widget>
+              </item>
+              <item row="1" column="1">
+               <widget class="QLabel" name="labelWatchPending">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="cursor">
+                 <cursorShape>IBeamCursor</cursorShape>
+                </property>
+                <property name="toolTip">
+                 <string>Unconfirmed transactions to watchonly addresses</string>
+                </property>
+                <property name="text">
+                 <string>0 BTC</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                </property>
+                <property name="textInteractionFlags">
+                 <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+                </property>
+               </widget>
+              </item>
+              <item row="2" column="1">
+               <widget class="QLabel" name="labelWatchImmature">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="cursor">
+                 <cursorShape>IBeamCursor</cursorShape>
+                </property>
+                <property name="toolTip">
+                 <string>Mined balance in watchonly addresses that has not yet matured</string>
+                </property>
+                <property name="text">
+                 <string>0 BTC</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                </property>
+                <property name="textInteractionFlags">
+                 <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+                </property>
+               </widget>
+              </item>
+              <item row="3" column="0" colspan="2">
+               <widget class="Line" name="lineWatchBalance">
+                <property name="sizePolicy">
+                 <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+                  <horstretch>0</horstretch>
+                  <verstretch>0</verstretch>
+                 </sizepolicy>
+                </property>
+                <property name="minimumSize">
+                 <size>
+                  <width>140</width>
+                  <height>0</height>
+                 </size>
+                </property>
+                <property name="orientation">
+                 <enum>Qt::Horizontal</enum>
+                </property>
+               </widget>
+              </item>
+              <item row="4" column="1">
+               <widget class="QLabel" name="labelWatchTotal">
+                <property name="font">
+                 <font>
+                  <weight>75</weight>
+                  <bold>true</bold>
+                 </font>
+                </property>
+                <property name="cursor">
+                 <cursorShape>IBeamCursor</cursorShape>
+                </property>
+                <property name="toolTip">
+                 <string>Current total balance in watchonly addresses</string>
+                </property>
+                <property name="text">
+                 <string>0 BTC</string>
+                </property>
+                <property name="alignment">
+                 <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                </property>
+                <property name="textInteractionFlags">
+                 <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+                </property>
+               </widget>
+              </item>
+             </layout>
             </item>
-           </layout>
-          </item>
             <item>
              <spacer name="horizontalSpacer_3">
               <property name="orientation">
                <enum>Qt::Horizontal</enum>
               </property>
+              <property name="sizeType">
+               <enum>QSizePolicy::Expanding</enum>
+              </property>
               <property name="sizeHint" stdset="0">
                <size>
-                <width>40</width>
+                <width>20</width>
                 <height>20</height>
                </size>
               </property>
diff --git a/src/qt/overviewpage.cpp b/src/qt/overviewpage.cpp
index 1a9d1de571..1278f368cf 100644
--- a/src/qt/overviewpage.cpp
+++ b/src/qt/overviewpage.cpp
@@ -103,6 +103,9 @@ OverviewPage::OverviewPage(QWidget *parent) :
     currentBalance(-1),
     currentUnconfirmedBalance(-1),
     currentImmatureBalance(-1),
+    currentWatchOnlyBalance(-1),
+    currentWatchUnconfBalance(-1),
+    currentWatchImmatureBalance(-1),
     txdelegate(new TxViewDelegate()),
     filter(0)
 {
@@ -135,22 +138,39 @@ OverviewPage::~OverviewPage()
     delete ui;
 }
 
-void OverviewPage::setBalance(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance)
+void OverviewPage::setBalance(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance, qint64 watchOnlyBalance, qint64 watchUnconfBalance, qint64 watchImmatureBalance)
 {
     int unit = walletModel->getOptionsModel()->getDisplayUnit();
     currentBalance = balance;
     currentUnconfirmedBalance = unconfirmedBalance;
     currentImmatureBalance = immatureBalance;
+    currentWatchOnlyBalance = watchOnlyBalance;
+    currentWatchUnconfBalance = watchUnconfBalance;
+    currentWatchImmatureBalance = watchImmatureBalance;
     ui->labelBalance->setText(BitcoinUnits::formatWithUnit(unit, balance));
     ui->labelUnconfirmed->setText(BitcoinUnits::formatWithUnit(unit, unconfirmedBalance));
     ui->labelImmature->setText(BitcoinUnits::formatWithUnit(unit, immatureBalance));
     ui->labelTotal->setText(BitcoinUnits::formatWithUnit(unit, balance + unconfirmedBalance + immatureBalance));
+    ui->labelWatchAvailable->setText(BitcoinUnits::formatWithUnit(unit, watchOnlyBalance));
+    ui->labelWatchPending->setText(BitcoinUnits::formatWithUnit(unit, watchUnconfBalance));
+    ui->labelWatchImmature->setText(BitcoinUnits::formatWithUnit(unit, watchImmatureBalance));
+    ui->labelWatchTotal->setText(BitcoinUnits::formatWithUnit(unit, watchOnlyBalance + watchUnconfBalance + watchImmatureBalance));
 
     // only show immature (newly mined) balance if it's non-zero, so as not to complicate things
     // for the non-mining users
     bool showImmature = immatureBalance != 0;
-    ui->labelImmature->setVisible(showImmature);
-    ui->labelImmatureText->setVisible(showImmature);
+    bool showWatchOnlyImmature = watchImmatureBalance != 0;
+    bool showWatchOnly = (watchOnlyBalance != 0 || watchUnconfBalance != 0 || showWatchOnlyImmature);
+
+    // for symmetry reasons also show immature label when the watchonly one is shown
+    ui->labelImmature->setVisible(showImmature || showWatchOnlyImmature);
+    ui->labelImmatureText->setVisible(showImmature || showWatchOnlyImmature);
+    ui->labelWatchonly->setVisible(showWatchOnly);              // show Watchonly label
+    ui->lineWatchBalance->setVisible(showWatchOnly);            // show watchonly balance separator line
+    ui->labelWatchAvailable->setVisible(showWatchOnly);         // show watchonly available balance
+    ui->labelWatchImmature->setVisible(showWatchOnlyImmature);  // show watchonly immature balance
+    ui->labelWatchPending->setVisible(showWatchOnly);           // show watchonly pending balance
+    ui->labelWatchTotal->setVisible(showWatchOnly);             // show watchonly total balance
 }
 
 void OverviewPage::setClientModel(ClientModel *model)
@@ -182,8 +202,9 @@ void OverviewPage::setWalletModel(WalletModel *model)
         ui->listTransactions->setModelColumn(TransactionTableModel::ToAddress);
 
         // Keep up to date with wallet
-        setBalance(model->getBalance(), model->getUnconfirmedBalance(), model->getImmatureBalance());
-        connect(model, SIGNAL(balanceChanged(qint64, qint64, qint64)), this, SLOT(setBalance(qint64, qint64, qint64)));
+        setBalance(model->getBalance(), model->getUnconfirmedBalance(), model->getImmatureBalance(),
+                   model->getWatchBalance(), model->getWatchUnconfirmedBalance(), model->getWatchImmatureBalance());
+        connect(model, SIGNAL(balanceChanged(qint64, qint64, qint64, qint64, qint64, qint64)), this, SLOT(setBalance(qint64, qint64, qint64, qint64, qint64, qint64)));
 
         connect(model->getOptionsModel(), SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
     }
@@ -197,7 +218,8 @@ void OverviewPage::updateDisplayUnit()
     if(walletModel && walletModel->getOptionsModel())
     {
         if(currentBalance != -1)
-            setBalance(currentBalance, currentUnconfirmedBalance, currentImmatureBalance);
+            setBalance(currentBalance, currentUnconfirmedBalance, currentImmatureBalance,
+                       currentWatchOnlyBalance, currentWatchUnconfBalance, currentWatchImmatureBalance);
 
         // Update txdelegate->unit with the current unit
         txdelegate->unit = walletModel->getOptionsModel()->getDisplayUnit();
diff --git a/src/qt/overviewpage.h b/src/qt/overviewpage.h
index 2507a3fb31..fe00106770 100644
--- a/src/qt/overviewpage.h
+++ b/src/qt/overviewpage.h
@@ -34,7 +34,8 @@ public:
     void showOutOfSyncWarning(bool fShow);
 
 public slots:
-    void setBalance(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance);
+    void setBalance(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance,
+                    qint64 watchOnlyBalance, qint64 watchUnconfBalance, qint64 watchImmatureBalance);
 
 signals:
     void transactionClicked(const QModelIndex &index);
@@ -46,6 +47,9 @@ private:
     qint64 currentBalance;
     qint64 currentUnconfirmedBalance;
     qint64 currentImmatureBalance;
+    qint64 currentWatchOnlyBalance;
+    qint64 currentWatchUnconfBalance;
+    qint64 currentWatchImmatureBalance;
 
     TxViewDelegate *txdelegate;
     TransactionFilterProxy *filter;
diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
index b7d74d7039..6f10ed5b0b 100644
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -90,8 +90,9 @@ void SendCoinsDialog::setModel(WalletModel *model)
             }
         }
 
-        setBalance(model->getBalance(), model->getUnconfirmedBalance(), model->getImmatureBalance());
-        connect(model, SIGNAL(balanceChanged(qint64, qint64, qint64)), this, SLOT(setBalance(qint64, qint64, qint64)));
+        setBalance(model->getBalance(), model->getUnconfirmedBalance(), model->getImmatureBalance(),
+                   model->getWatchBalance(), model->getWatchUnconfirmedBalance(), model->getWatchImmatureBalance());
+        connect(model, SIGNAL(balanceChanged(qint64, qint64, qint64, qint64, qint64, qint64)), this, SLOT(setBalance(qint64, qint64, qint64, qint64, qint64, qint64)));
         connect(model->getOptionsModel(), SIGNAL(displayUnitChanged(int)), this, SLOT(updateDisplayUnit()));
 
         // Coin Control
@@ -383,10 +384,14 @@ bool SendCoinsDialog::handlePaymentRequest(const SendCoinsRecipient &rv)
     return true;
 }
 
-void SendCoinsDialog::setBalance(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance)
+void SendCoinsDialog::setBalance(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance, 
+                                 qint64 watchBalance, qint64 watchUnconfirmedBalance, qint64 watchImmatureBalance)
 {
     Q_UNUSED(unconfirmedBalance);
     Q_UNUSED(immatureBalance);
+    Q_UNUSED(watchBalance);
+    Q_UNUSED(watchUnconfirmedBalance);
+    Q_UNUSED(watchImmatureBalance);
 
     if(model && model->getOptionsModel())
     {
@@ -396,7 +401,7 @@ void SendCoinsDialog::setBalance(qint64 balance, qint64 unconfirmedBalance, qint
 
 void SendCoinsDialog::updateDisplayUnit()
 {
-    setBalance(model->getBalance(), 0, 0);
+    setBalance(model->getBalance(), 0, 0, 0, 0, 0);
 }
 
 void SendCoinsDialog::processSendCoinsReturn(const WalletModel::SendCoinsReturn &sendCoinsReturn, const QString &msgArg)
diff --git a/src/qt/sendcoinsdialog.h b/src/qt/sendcoinsdialog.h
index fcae26c720..6cdf4a00c8 100644
--- a/src/qt/sendcoinsdialog.h
+++ b/src/qt/sendcoinsdialog.h
@@ -47,7 +47,8 @@ public slots:
     void accept();
     SendCoinsEntry *addEntry();
     void updateTabsAndLabels();
-    void setBalance(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance);
+    void setBalance(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance,
+                    qint64 watchOnlyBalance, qint64 watchUnconfBalance, qint64 watchImmatureBalance);
 
 private:
     Ui::SendCoinsDialog *ui;
diff --git a/src/qt/transactiondesc.cpp b/src/qt/transactiondesc.cpp
index e48dbcac9d..36e4d50e30 100644
--- a/src/qt/transactiondesc.cpp
+++ b/src/qt/transactiondesc.cpp
@@ -15,6 +15,7 @@
 #include "timedata.h"
 #include "ui_interface.h"
 #include "wallet.h"
+#include "script.h"
 
 #include <stdint.h>
 #include <string>
@@ -54,8 +55,8 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
     strHTML += "<html><font face='verdana, arial, helvetica, sans-serif'>";
 
     int64_t nTime = wtx.GetTxTime();
-    int64_t nCredit = wtx.GetCredit();
-    int64_t nDebit = wtx.GetDebit();
+    int64_t nCredit = wtx.GetCredit(ISMINE_ALL);
+    int64_t nDebit = wtx.GetDebit(ISMINE_ALL);
     int64_t nNet = nCredit - nDebit;
 
     strHTML += "<b>" + tr("Status") + ":</b> " + FormatTxStatus(wtx);
@@ -97,10 +98,11 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
                     strHTML += "<b>" + tr("From") + ":</b> " + tr("unknown") + "<br>";
                     strHTML += "<b>" + tr("To") + ":</b> ";
                     strHTML += GUIUtil::HtmlEscape(rec->address);
+                    QString addressOwned = (::IsMine(*wallet, address) == ISMINE_SPENDABLE) ? tr("own address") : tr("watch-only");
                     if (!wallet->mapAddressBook[address].name.empty())
-                        strHTML += " (" + tr("own address") + ", " + tr("label") + ": " + GUIUtil::HtmlEscape(wallet->mapAddressBook[address].name) + ")";
+                        strHTML += " (" + addressOwned + ", " + tr("label") + ": " + GUIUtil::HtmlEscape(wallet->mapAddressBook[address].name) + ")";
                     else
-                        strHTML += " (" + tr("own address") + ")";
+                        strHTML += " (" + addressOwned + ")";
                     strHTML += "<br>";
                 }
             }
@@ -131,7 +133,7 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
         //
         int64_t nUnmatured = 0;
         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
-            nUnmatured += wallet->GetCredit(txout);
+            nUnmatured += wallet->GetCredit(txout, ISMINE_ALL);
         strHTML += "<b>" + tr("Credit") + ":</b> ";
         if (wtx.IsInMainChain())
             strHTML += BitcoinUnits::formatWithUnit(unit, nUnmatured)+ " (" + tr("matures in %n more block(s)", "", wtx.GetBlocksToMaturity()) + ")";
@@ -148,22 +150,33 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
     }
     else
     {
-        bool fAllFromMe = true;
+        isminetype fAllFromMe = ISMINE_SPENDABLE;
         BOOST_FOREACH(const CTxIn& txin, wtx.vin)
-            fAllFromMe = fAllFromMe && wallet->IsMine(txin);
+        {
+            isminetype mine = wallet->IsMine(txin);
+            if(fAllFromMe > mine) fAllFromMe = mine;
+        }
 
-        bool fAllToMe = true;
+        isminetype fAllToMe = ISMINE_SPENDABLE;
         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
-            fAllToMe = fAllToMe && wallet->IsMine(txout);
+        {
+            isminetype mine = wallet->IsMine(txout);
+            if(fAllToMe > mine) fAllToMe = mine;
+        }
 
         if (fAllFromMe)
         {
+            if(fAllFromMe == ISMINE_WATCH_ONLY)
+                strHTML += "<b>" + tr("From") + ":</b> " + tr("watch-only") + "<br>";
+
             //
             // Debit
             //
             BOOST_FOREACH(const CTxOut& txout, wtx.vout)
             {
-                if (wallet->IsMine(txout))
+                // Ignore change
+                isminetype toSelf = wallet->IsMine(txout);
+                if ((toSelf == ISMINE_SPENDABLE) && (fAllFromMe == ISMINE_SPENDABLE))
                     continue;
 
                 if (!wtx.mapValue.count("to") || wtx.mapValue["to"].empty())
@@ -176,11 +189,17 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
                         if (wallet->mapAddressBook.count(address) && !wallet->mapAddressBook[address].name.empty())
                             strHTML += GUIUtil::HtmlEscape(wallet->mapAddressBook[address].name) + " ";
                         strHTML += GUIUtil::HtmlEscape(CBitcoinAddress(address).ToString());
+                        if(toSelf == ISMINE_SPENDABLE)
+                            strHTML += " (own address)";
+                        else if(toSelf == ISMINE_WATCH_ONLY)
+                            strHTML += " (watch-only)";
                         strHTML += "<br>";
                     }
                 }
 
                 strHTML += "<b>" + tr("Debit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, -txout.nValue) + "<br>";
+                if(toSelf)
+                    strHTML += "<b>" + tr("Credit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, txout.nValue) + "<br>";
             }
 
             if (fAllToMe)
@@ -188,8 +207,8 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
                 // Payment to self
                 int64_t nChange = wtx.GetChange();
                 int64_t nValue = nCredit - nChange;
-                strHTML += "<b>" + tr("Debit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, -nValue) + "<br>";
-                strHTML += "<b>" + tr("Credit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, nValue) + "<br>";
+                strHTML += "<b>" + tr("Total debit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, -nValue) + "<br>";
+                strHTML += "<b>" + tr("Total credit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, nValue) + "<br>";
             }
 
             int64_t nTxFee = nDebit - wtx.GetValueOut();
@@ -203,10 +222,10 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
             //
             BOOST_FOREACH(const CTxIn& txin, wtx.vin)
                 if (wallet->IsMine(txin))
-                    strHTML += "<b>" + tr("Debit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, -wallet->GetDebit(txin)) + "<br>";
+                    strHTML += "<b>" + tr("Debit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, -wallet->GetDebit(txin, ISMINE_ALL)) + "<br>";
             BOOST_FOREACH(const CTxOut& txout, wtx.vout)
                 if (wallet->IsMine(txout))
-                    strHTML += "<b>" + tr("Credit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, wallet->GetCredit(txout)) + "<br>";
+                    strHTML += "<b>" + tr("Credit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, wallet->GetCredit(txout, ISMINE_ALL)) + "<br>";
         }
     }
 
@@ -256,10 +275,10 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
         strHTML += "<hr><br>" + tr("Debug information") + "<br><br>";
         BOOST_FOREACH(const CTxIn& txin, wtx.vin)
             if(wallet->IsMine(txin))
-                strHTML += "<b>" + tr("Debit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, -wallet->GetDebit(txin)) + "<br>";
+                strHTML += "<b>" + tr("Debit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, -wallet->GetDebit(txin, ISMINE_ALL)) + "<br>";
         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
             if(wallet->IsMine(txout))
-                strHTML += "<b>" + tr("Credit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, wallet->GetCredit(txout)) + "<br>";
+                strHTML += "<b>" + tr("Credit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, wallet->GetCredit(txout, ISMINE_ALL)) + "<br>";
 
         strHTML += "<br><b>" + tr("Transaction") + ":</b><br>";
         strHTML += GUIUtil::HtmlEscape(wtx.ToString(), true);
@@ -286,7 +305,8 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, TransactionReco
                         strHTML += QString::fromStdString(CBitcoinAddress(address).ToString());
                     }
                     strHTML = strHTML + " " + tr("Amount") + "=" + BitcoinUnits::formatWithUnit(unit, vout.nValue);
-                    strHTML = strHTML + " IsMine=" + (wallet->IsMine(vout) ? tr("true") : tr("false")) + "</li>";
+                    strHTML = strHTML + " IsMine=" + (wallet->IsMine(vout) & ISMINE_SPENDABLE ? tr("true") : tr("false")) + "</li>";
+                    strHTML = strHTML + " IsWatchOnly=" + (wallet->IsMine(vout) & ISMINE_WATCH_ONLY ? tr("true") : tr("false")) + "</li>";
                 }
             }
         }
diff --git a/src/qt/transactionrecord.cpp b/src/qt/transactionrecord.cpp
index 21f1b7356f..7d29c212b3 100644
--- a/src/qt/transactionrecord.cpp
+++ b/src/qt/transactionrecord.cpp
@@ -33,7 +33,7 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *
     QList<TransactionRecord> parts;
     int64_t nTime = wtx.GetTxTime();
     int64_t nCredit = wtx.GetCredit(true);
-    int64_t nDebit = wtx.GetDebit();
+    int64_t nDebit = wtx.GetDebit(ISMINE_ALL);
     int64_t nNet = nCredit - nDebit;
     uint256 hash = wtx.GetHash();
     std::map<std::string, std::string> mapValue = wtx.mapValue;
@@ -45,12 +45,14 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *
         //
         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
         {
-            if(wallet->IsMine(txout))
+            isminetype mine = wallet->IsMine(txout);
+            if(mine)
             {
                 TransactionRecord sub(hash, nTime);
                 CTxDestination address;
                 sub.idx = parts.size(); // sequence number
                 sub.credit = txout.nValue;
+                sub.involvesWatchAddress = mine == ISMINE_WATCH_ONLY;
                 if (ExtractDestination(txout.scriptPubKey, address) && IsMine(*wallet, address))
                 {
                     // Received by Bitcoin Address
@@ -75,13 +77,22 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *
     }
     else
     {
-        bool fAllFromMe = true;
+        bool involvesWatchAddress = false;
+        isminetype fAllFromMe = ISMINE_SPENDABLE;
         BOOST_FOREACH(const CTxIn& txin, wtx.vin)
-            fAllFromMe = fAllFromMe && wallet->IsMine(txin);
+        {
+            isminetype mine = wallet->IsMine(txin);
+            if(mine == ISMINE_WATCH_ONLY) involvesWatchAddress = true;
+            if(fAllFromMe > mine) fAllFromMe = mine;
+        }
 
-        bool fAllToMe = true;
+        isminetype fAllToMe = ISMINE_SPENDABLE;
         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
-            fAllToMe = fAllToMe && wallet->IsMine(txout);
+        {
+            isminetype mine = wallet->IsMine(txout);
+            if(mine == ISMINE_WATCH_ONLY) involvesWatchAddress = true;
+            if(fAllToMe > mine) fAllToMe = mine;
+        }
 
         if (fAllFromMe && fAllToMe)
         {
@@ -90,6 +101,7 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *
 
             parts.append(TransactionRecord(hash, nTime, TransactionRecord::SendToSelf, "",
                             -(nDebit - nChange), nCredit - nChange));
+            parts.last().involvesWatchAddress = involvesWatchAddress;   // maybe pass to TransactionRecord as constructor argument
         }
         else if (fAllFromMe)
         {
@@ -103,6 +115,7 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *
                 const CTxOut& txout = wtx.vout[nOut];
                 TransactionRecord sub(hash, nTime);
                 sub.idx = parts.size();
+                sub.involvesWatchAddress = involvesWatchAddress;
 
                 if(wallet->IsMine(txout))
                 {
@@ -143,6 +156,7 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *
             // Mixed debit transaction, can't break down payees
             //
             parts.append(TransactionRecord(hash, nTime, TransactionRecord::Other, "", nNet, 0));
+            parts.last().involvesWatchAddress = involvesWatchAddress;
         }
     }
 
diff --git a/src/qt/transactionrecord.h b/src/qt/transactionrecord.h
index 37679cebfa..d3cfa77d97 100644
--- a/src/qt/transactionrecord.h
+++ b/src/qt/transactionrecord.h
@@ -137,6 +137,9 @@ public:
     /** Status: can change with block chain update */
     TransactionStatus status;
 
+    /** Whether the transaction was sent/received with a watch-only address */
+    bool involvesWatchAddress;
+
     /** Return the unique identifier for this transaction (part) */
     QString getTxID() const;
 
diff --git a/src/qt/transactiontablemodel.cpp b/src/qt/transactiontablemodel.cpp
index 6c1a6c3579..3605cc1bad 100644
--- a/src/qt/transactiontablemodel.cpp
+++ b/src/qt/transactiontablemodel.cpp
@@ -396,19 +396,22 @@ QVariant TransactionTableModel::txAddressDecoration(const TransactionRecord *wtx
 
 QString TransactionTableModel::formatTxToAddress(const TransactionRecord *wtx, bool tooltip) const
 {
+    // mark transactions involving watch-only addresses:
+    QString watchAddress = wtx->involvesWatchAddress ? " (w) " : "";
+
     switch(wtx->type)
     {
     case TransactionRecord::RecvFromOther:
-        return QString::fromStdString(wtx->address);
+        return QString::fromStdString(wtx->address) + watchAddress;
     case TransactionRecord::RecvWithAddress:
     case TransactionRecord::SendToAddress:
     case TransactionRecord::Generated:
-        return lookupAddress(wtx->address, tooltip);
+        return lookupAddress(wtx->address, tooltip) + watchAddress;
     case TransactionRecord::SendToOther:
-        return QString::fromStdString(wtx->address);
+        return QString::fromStdString(wtx->address) + watchAddress;
     case TransactionRecord::SendToSelf:
     default:
-        return tr("(n/a)");
+        return tr("(n/a)") + watchAddress;
     }
 }
 
diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index defc815def..7317c32766 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -60,7 +60,8 @@ qint64 WalletModel::getBalance(const CCoinControl *coinControl) const
         std::vector<COutput> vCoins;
         wallet->AvailableCoins(vCoins, true, coinControl);
         BOOST_FOREACH(const COutput& out, vCoins)
-            nBalance += out.tx->vout[out.i].nValue;
+            if(out.fSpendable)
+                nBalance += out.tx->vout[out.i].nValue;
 
         return nBalance;
     }
@@ -78,6 +79,21 @@ qint64 WalletModel::getImmatureBalance() const
     return wallet->GetImmatureBalance();
 }
 
+qint64 WalletModel::getWatchBalance() const
+{
+    return wallet->GetWatchOnlyBalance();
+}
+
+qint64 WalletModel::getWatchUnconfirmedBalance() const
+{
+    return wallet->GetUnconfirmedWatchOnlyBalance();
+}
+
+qint64 WalletModel::getWatchImmatureBalance() const
+{
+    return wallet->GetImmatureWatchOnlyBalance();
+}
+
 int WalletModel::getNumTransactions() const
 {
     int numTransactions = 0;
@@ -126,13 +142,21 @@ void WalletModel::checkBalanceChanged()
     qint64 newBalance = getBalance();
     qint64 newUnconfirmedBalance = getUnconfirmedBalance();
     qint64 newImmatureBalance = getImmatureBalance();
+    qint64 newWatchOnlyBalance = getWatchBalance();
+    qint64 newWatchUnconfBalance = getWatchUnconfirmedBalance();
+    qint64 newWatchImmatureBalance = getWatchImmatureBalance();
 
-    if(cachedBalance != newBalance || cachedUnconfirmedBalance != newUnconfirmedBalance || cachedImmatureBalance != newImmatureBalance)
+    if(cachedBalance != newBalance || cachedUnconfirmedBalance != newUnconfirmedBalance || cachedImmatureBalance != newImmatureBalance ||
+        cachedWatchOnlyBalance != newWatchOnlyBalance || cachedWatchUnconfBalance != newWatchUnconfBalance || cachedWatchImmatureBalance != newWatchImmatureBalance)
     {
         cachedBalance = newBalance;
         cachedUnconfirmedBalance = newUnconfirmedBalance;
         cachedImmatureBalance = newImmatureBalance;
-        emit balanceChanged(newBalance, newUnconfirmedBalance, newImmatureBalance);
+        cachedWatchOnlyBalance = newWatchOnlyBalance;
+        cachedWatchUnconfBalance = newWatchUnconfBalance;
+        cachedWatchImmatureBalance = newWatchImmatureBalance;
+        emit balanceChanged(newBalance, newUnconfirmedBalance, newImmatureBalance,
+                            newWatchOnlyBalance, newWatchUnconfBalance, newWatchImmatureBalance);
     }
 }
 
@@ -543,7 +567,7 @@ void WalletModel::getOutputs(const std::vector<COutPoint>& vOutpoints, std::vect
         if (!wallet->mapWallet.count(outpoint.hash)) continue;
         int nDepth = wallet->mapWallet[outpoint.hash].GetDepthInMainChain();
         if (nDepth < 0) continue;
-        COutput out(&wallet->mapWallet[outpoint.hash], outpoint.n, nDepth);
+        COutput out(&wallet->mapWallet[outpoint.hash], outpoint.n, nDepth, true);
         vOutputs.push_back(out);
     }
 }
@@ -570,7 +594,7 @@ void WalletModel::listCoins(std::map<QString, std::vector<COutput> >& mapCoins)
         if (!wallet->mapWallet.count(outpoint.hash)) continue;
         int nDepth = wallet->mapWallet[outpoint.hash].GetDepthInMainChain();
         if (nDepth < 0) continue;
-        COutput out(&wallet->mapWallet[outpoint.hash], outpoint.n, nDepth);
+        COutput out(&wallet->mapWallet[outpoint.hash], outpoint.n, nDepth, true);
         vCoins.push_back(out);
     }
 
@@ -581,11 +605,12 @@ void WalletModel::listCoins(std::map<QString, std::vector<COutput> >& mapCoins)
         while (wallet->IsChange(cout.tx->vout[cout.i]) && cout.tx->vin.size() > 0 && wallet->IsMine(cout.tx->vin[0]))
         {
             if (!wallet->mapWallet.count(cout.tx->vin[0].prevout.hash)) break;
-            cout = COutput(&wallet->mapWallet[cout.tx->vin[0].prevout.hash], cout.tx->vin[0].prevout.n, 0);
+            cout = COutput(&wallet->mapWallet[cout.tx->vin[0].prevout.hash], cout.tx->vin[0].prevout.n, 0, true);
         }
 
         CTxDestination address;
-        if(!ExtractDestination(cout.tx->vout[cout.i].scriptPubKey, address)) continue;
+        if(!out.fSpendable || !ExtractDestination(cout.tx->vout[cout.i].scriptPubKey, address))
+            continue;
         mapCoins[CBitcoinAddress(address).ToString().c_str()].push_back(out);
     }
 }
diff --git a/src/qt/walletmodel.h b/src/qt/walletmodel.h
index ccf590aaed..7ad54ff8e6 100644
--- a/src/qt/walletmodel.h
+++ b/src/qt/walletmodel.h
@@ -128,6 +128,9 @@ public:
     qint64 getBalance(const CCoinControl *coinControl = NULL) const;
     qint64 getUnconfirmedBalance() const;
     qint64 getImmatureBalance() const;
+    qint64 getWatchBalance() const;
+    qint64 getWatchUnconfirmedBalance() const;
+    qint64 getWatchImmatureBalance() const;
     int getNumTransactions() const;
     EncryptionStatus getEncryptionStatus() const;
 
@@ -206,6 +209,9 @@ private:
     qint64 cachedBalance;
     qint64 cachedUnconfirmedBalance;
     qint64 cachedImmatureBalance;
+    qint64 cachedWatchOnlyBalance;
+    qint64 cachedWatchUnconfBalance;
+    qint64 cachedWatchImmatureBalance;
     qint64 cachedNumTransactions;
     EncryptionStatus cachedEncryptionStatus;
     int cachedNumBlocks;
@@ -218,7 +224,8 @@ private:
 
 signals:
     // Signal that balance in wallet changed
-    void balanceChanged(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance);
+    void balanceChanged(qint64 balance, qint64 unconfirmedBalance, qint64 immatureBalance,
+                        qint64 watchOnlyBalance, qint64 watchUnconfBalance, qint64 watchImmatureBalance);
 
     // Number of transactions in wallet changed
     void numTransactionsChanged(int count);
diff --git a/src/rpcclient.cpp b/src/rpcclient.cpp
index 501940a730..5edeecf933 100644
--- a/src/rpcclient.cpp
+++ b/src/rpcclient.cpp
@@ -37,9 +37,12 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "getreceivedbyaccount", 1 },
     { "listreceivedbyaddress", 0 },
     { "listreceivedbyaddress", 1 },
+    { "listreceivedbyaddress", 2 },
     { "listreceivedbyaccount", 0 },
     { "listreceivedbyaccount", 1 },
+    { "listreceivedbyaccount", 2 },
     { "getbalance", 1 },
+    { "getbalance", 2 },
     { "getblockhash", 0 },
     { "move", 2 },
     { "move", 3 },
@@ -47,10 +50,13 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "sendfrom", 3 },
     { "listtransactions", 1 },
     { "listtransactions", 2 },
+    { "listtransactions", 3 },
     { "listaccounts", 0 },
+    { "listaccounts", 1 },
     { "walletpassphrase", 1 },
     { "getblocktemplate", 0 },
     { "listsinceblock", 1 },
+    { "listsinceblock", 2 },
     { "sendmany", 1 },
     { "sendmany", 2 },
     { "addmultisigaddress", 0 },
@@ -72,6 +78,7 @@ static const CRPCConvertParam vRPCConvertParams[] =
     { "lockunspent", 0 },
     { "lockunspent", 1 },
     { "importprivkey", 2 },
+    { "importaddress", 2 },
     { "verifychain", 0 },
     { "verifychain", 1 },
     { "keypoolrefill", 0 },
@@ -126,7 +133,6 @@ Array RPCConvertValues(const std::string &strMethod, const std::vector<std::stri
                 throw runtime_error(string("Error parsing JSON:")+strVal);
             params.push_back(jVal);
         }
-
     }
 
     return params;
diff --git a/src/rpcdump.cpp b/src/rpcdump.cpp
index d20bfcf095..4193f41b49 100644
--- a/src/rpcdump.cpp
+++ b/src/rpcdump.cpp
@@ -133,6 +133,60 @@ Value importprivkey(const Array& params, bool fHelp)
     return Value::null;
 }
 
+Value importaddress(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() < 1 || params.size() > 3)
+        throw runtime_error(
+            "importaddress <address> [label] [rescan=true]\n"
+            "Adds an address or script (in hex) that can be watched as if it were in your wallet but cannot be used to spend.");
+
+    CScript script;
+
+    CBitcoinAddress address(params[0].get_str());
+    if (address.IsValid()) {
+        script.SetDestination(address.Get());
+    } else if (IsHex(params[0].get_str())) {
+        std::vector<unsigned char> data(ParseHex(params[0].get_str()));
+        script = CScript(data.begin(), data.end());
+    } else {
+        throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address or script");
+    }
+
+    string strLabel = "";
+    if (params.size() > 1)
+        strLabel = params[1].get_str();
+
+    // Whether to perform rescan after import
+    bool fRescan = true;
+    if (params.size() > 2)
+        fRescan = params[2].get_bool();
+
+    {
+        LOCK2(cs_main, pwalletMain->cs_wallet);
+
+        // add to address book or update label
+        if (address.IsValid())
+            pwalletMain->SetAddressBook(address.Get(), strLabel, "receive");
+
+        // Don't throw error in case an address is already there
+        if (pwalletMain->HaveWatchOnly(script))
+            return Value::null;
+
+        pwalletMain->MarkDirty();
+
+        if (!pwalletMain->AddWatchOnly(script))
+            throw JSONRPCError(RPC_WALLET_ERROR, "Error adding address to wallet");
+
+        if (fRescan)
+        {
+            pwalletMain->ScanForWalletTransactions(chainActive.Genesis(), true);
+            pwalletMain->ReacceptWalletTransactions();
+        }
+    }
+
+    return Value::null;
+}
+
 Value importwallet(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 1)
diff --git a/src/rpcmisc.cpp b/src/rpcmisc.cpp
index 1e84393025..cff795bdf4 100644
--- a/src/rpcmisc.cpp
+++ b/src/rpcmisc.cpp
@@ -92,36 +92,45 @@ Value getinfo(const Array& params, bool fHelp)
 #ifdef ENABLE_WALLET
 class DescribeAddressVisitor : public boost::static_visitor<Object>
 {
+private:
+    isminetype mine;
+
 public:
+    DescribeAddressVisitor(isminetype mineIn) : mine(mineIn) {}
+
     Object operator()(const CNoDestination &dest) const { return Object(); }
 
     Object operator()(const CKeyID &keyID) const {
         Object obj;
         CPubKey vchPubKey;
-        pwalletMain->GetPubKey(keyID, vchPubKey);
         obj.push_back(Pair("isscript", false));
-        obj.push_back(Pair("pubkey", HexStr(vchPubKey)));
-        obj.push_back(Pair("iscompressed", vchPubKey.IsCompressed()));
+        if (mine == ISMINE_SPENDABLE) {
+            pwalletMain->GetPubKey(keyID, vchPubKey);
+            obj.push_back(Pair("pubkey", HexStr(vchPubKey)));
+            obj.push_back(Pair("iscompressed", vchPubKey.IsCompressed()));
+        }
         return obj;
     }
 
     Object operator()(const CScriptID &scriptID) const {
         Object obj;
         obj.push_back(Pair("isscript", true));
-        CScript subscript;
-        pwalletMain->GetCScript(scriptID, subscript);
-        std::vector<CTxDestination> addresses;
-        txnouttype whichType;
-        int nRequired;
-        ExtractDestinations(subscript, whichType, addresses, nRequired);
-        obj.push_back(Pair("script", GetTxnOutputType(whichType)));
-        obj.push_back(Pair("hex", HexStr(subscript.begin(), subscript.end())));
-        Array a;
-        BOOST_FOREACH(const CTxDestination& addr, addresses)
-            a.push_back(CBitcoinAddress(addr).ToString());
-        obj.push_back(Pair("addresses", a));
-        if (whichType == TX_MULTISIG)
-            obj.push_back(Pair("sigsrequired", nRequired));
+        if (mine != ISMINE_NO) {
+            CScript subscript;
+            pwalletMain->GetCScript(scriptID, subscript);
+            std::vector<CTxDestination> addresses;
+            txnouttype whichType;
+            int nRequired;
+            ExtractDestinations(subscript, whichType, addresses, nRequired);
+            obj.push_back(Pair("script", GetTxnOutputType(whichType)));
+            obj.push_back(Pair("hex", HexStr(subscript.begin(), subscript.end())));
+            Array a;
+            BOOST_FOREACH(const CTxDestination& addr, addresses)
+                a.push_back(CBitcoinAddress(addr).ToString());
+            obj.push_back(Pair("addresses", a));
+            if (whichType == TX_MULTISIG)
+                obj.push_back(Pair("sigsrequired", nRequired));
+        }
         return obj;
     }
 };
@@ -161,10 +170,11 @@ Value validateaddress(const Array& params, bool fHelp)
         string currentAddress = address.ToString();
         ret.push_back(Pair("address", currentAddress));
 #ifdef ENABLE_WALLET
-        bool fMine = pwalletMain ? IsMine(*pwalletMain, dest) : false;
-        ret.push_back(Pair("ismine", fMine));
-        if (fMine) {
-            Object detail = boost::apply_visitor(DescribeAddressVisitor(), dest);
+        isminetype mine = pwalletMain ? IsMine(*pwalletMain, dest) : ISMINE_NO;
+        ret.push_back(Pair("ismine", (mine & ISMINE_SPENDABLE) ? true : false));
+        if (mine != ISMINE_NO) {
+            ret.push_back(Pair("iswatchonly", (mine & ISMINE_WATCH_ONLY) ? true: false));
+            Object detail = boost::apply_visitor(DescribeAddressVisitor(mine), dest);
             ret.insert(ret.end(), detail.begin(), detail.end());
         }
         if (pwalletMain && pwalletMain->mapAddressBook.count(dest))
diff --git a/src/rpcrawtransaction.cpp b/src/rpcrawtransaction.cpp
index 45a227d1dc..2306b1b883 100644
--- a/src/rpcrawtransaction.cpp
+++ b/src/rpcrawtransaction.cpp
@@ -304,6 +304,7 @@ Value listunspent(const Array& params, bool fHelp)
         }
         entry.push_back(Pair("amount",ValueFromAmount(nValue)));
         entry.push_back(Pair("confirmations",out.nDepth));
+        entry.push_back(Pair("spendable", out.fSpendable));
         results.push_back(entry);
     }
 
diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index 5c4d307497..18fa075101 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -282,6 +282,7 @@ static const CRPCCommand vRPCCommands[] =
     { "getwalletinfo",          &getwalletinfo,          true,      false,      true },
     { "importprivkey",          &importprivkey,          false,     false,      true },
     { "importwallet",           &importwallet,           false,     false,      true },
+    { "importaddress",          &importaddress,          false,     false,      true },
     { "keypoolrefill",          &keypoolrefill,          true,      false,      true },
     { "listaccounts",           &listaccounts,           false,     false,      true },
     { "listaddressgroupings",   &listaddressgroupings,   false,     false,      true },
diff --git a/src/rpcserver.h b/src/rpcserver.h
index 01e77163c4..e32eb975a1 100644
--- a/src/rpcserver.h
+++ b/src/rpcserver.h
@@ -131,6 +131,7 @@ extern json_spirit::Value getnettotals(const json_spirit::Array& params, bool fH
 
 extern json_spirit::Value dumpprivkey(const json_spirit::Array& params, bool fHelp); // in rpcdump.cpp
 extern json_spirit::Value importprivkey(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value importaddress(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value dumpwallet(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value importwallet(const json_spirit::Array& params, bool fHelp);
 
diff --git a/src/rpcwallet.cpp b/src/rpcwallet.cpp
index 71a6058358..1e46129065 100644
--- a/src/rpcwallet.cpp
+++ b/src/rpcwallet.cpp
@@ -557,7 +557,7 @@ Value getreceivedbyaccount(const Array& params, bool fHelp)
 }
 
 
-int64_t GetAccountBalance(CWalletDB& walletdb, const string& strAccount, int nMinDepth)
+int64_t GetAccountBalance(CWalletDB& walletdb, const string& strAccount, int nMinDepth, const isminefilter& filter)
 {
     int64_t nBalance = 0;
 
@@ -569,7 +569,7 @@ int64_t GetAccountBalance(CWalletDB& walletdb, const string& strAccount, int nMi
             continue;
 
         int64_t nReceived, nSent, nFee;
-        wtx.GetAccountAmounts(strAccount, nReceived, nSent, nFee);
+        wtx.GetAccountAmounts(strAccount, nReceived, nSent, nFee, filter);
 
         if (nReceived != 0 && wtx.GetDepthInMainChain() >= nMinDepth)
             nBalance += nReceived;
@@ -582,18 +582,18 @@ int64_t GetAccountBalance(CWalletDB& walletdb, const string& strAccount, int nMi
     return nBalance;
 }
 
-int64_t GetAccountBalance(const string& strAccount, int nMinDepth)
+int64_t GetAccountBalance(const string& strAccount, int nMinDepth, const isminefilter& filter)
 {
     CWalletDB walletdb(pwalletMain->strWalletFile);
-    return GetAccountBalance(walletdb, strAccount, nMinDepth);
+    return GetAccountBalance(walletdb, strAccount, nMinDepth, filter);
 }
 
 
 Value getbalance(const Array& params, bool fHelp)
 {
-    if (fHelp || params.size() > 2)
+    if (fHelp || params.size() > 3)
         throw runtime_error(
-            "getbalance ( \"account\" minconf )\n"
+            "getbalance ( \"account\" minconf includeWatchonly )\n"
             "\nIf account is not specified, returns the server's total available balance.\n"
             "If account is specified, returns the balance in the account.\n"
             "Note that the account \"\" is not the same as leaving the parameter out.\n"
@@ -601,6 +601,7 @@ Value getbalance(const Array& params, bool fHelp)
             "\nArguments:\n"
             "1. \"account\"      (string, optional) The selected account, or \"*\" for entire wallet. It may be the default account using \"\".\n"
             "2. minconf          (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
+            "3. includeWatchonly (bool, optional, default=false) Also include balance in watchonly addresses (see 'importaddress')\n"
             "\nResult:\n"
             "amount              (numeric) The total amount in btc received for this account.\n"
             "\nExamples:\n"
@@ -622,6 +623,10 @@ Value getbalance(const Array& params, bool fHelp)
     int nMinDepth = 1;
     if (params.size() > 1)
         nMinDepth = params[1].get_int();
+    isminefilter filter = ISMINE_SPENDABLE;
+    if(params.size() > 2)
+        if(params[2].get_bool())
+            filter = filter | ISMINE_WATCH_ONLY;
 
     if (params[0].get_str() == "*") {
         // Calculate total balance a different way from GetBalance()
@@ -638,7 +643,7 @@ Value getbalance(const Array& params, bool fHelp)
             string strSentAccount;
             list<pair<CTxDestination, int64_t> > listReceived;
             list<pair<CTxDestination, int64_t> > listSent;
-            wtx.GetAmounts(listReceived, listSent, allFee, strSentAccount);
+            wtx.GetAmounts(listReceived, listSent, allFee, strSentAccount, filter);
             if (wtx.GetDepthInMainChain() >= nMinDepth)
             {
                 BOOST_FOREACH(const PAIRTYPE(CTxDestination,int64_t)& r, listReceived)
@@ -653,7 +658,7 @@ Value getbalance(const Array& params, bool fHelp)
 
     string strAccount = AccountFromValue(params[0]);
 
-    int64_t nBalance = GetAccountBalance(strAccount, nMinDepth);
+    int64_t nBalance = GetAccountBalance(strAccount, nMinDepth, filter);
 
     return ValueFromAmount(nBalance);
 }
@@ -781,7 +786,7 @@ Value sendfrom(const Array& params, bool fHelp)
     EnsureWalletIsUnlocked();
 
     // Check funds
-    int64_t nBalance = GetAccountBalance(strAccount, nMinDepth);
+    int64_t nBalance = GetAccountBalance(strAccount, nMinDepth, ISMINE_SPENDABLE);
     if (nAmount > nBalance)
         throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Account has insufficient funds");
 
@@ -858,7 +863,7 @@ Value sendmany(const Array& params, bool fHelp)
     EnsureWalletIsUnlocked();
 
     // Check funds
-    int64_t nBalance = GetAccountBalance(strAccount, nMinDepth);
+    int64_t nBalance = GetAccountBalance(strAccount, nMinDepth, ISMINE_SPENDABLE);
     if (totalAmount > nBalance)
         throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Account has insufficient funds");
 
@@ -927,10 +932,12 @@ struct tallyitem
     int64_t nAmount;
     int nConf;
     vector<uint256> txids;
+    bool fIsWatchonly;
     tallyitem()
     {
         nAmount = 0;
         nConf = std::numeric_limits<int>::max();
+        fIsWatchonly = false;
     }
 };
 
@@ -946,6 +953,11 @@ Value ListReceived(const Array& params, bool fByAccounts)
     if (params.size() > 1)
         fIncludeEmpty = params[1].get_bool();
 
+    isminefilter filter = ISMINE_SPENDABLE;
+    if(params.size() > 2)
+        if(params[2].get_bool())
+            filter = filter | ISMINE_WATCH_ONLY;
+
     // Tally
     map<CBitcoinAddress, tallyitem> mapTally;
     for (map<uint256, CWalletTx>::iterator it = pwalletMain->mapWallet.begin(); it != pwalletMain->mapWallet.end(); ++it)
@@ -962,13 +974,19 @@ Value ListReceived(const Array& params, bool fByAccounts)
         BOOST_FOREACH(const CTxOut& txout, wtx.vout)
         {
             CTxDestination address;
-            if (!ExtractDestination(txout.scriptPubKey, address) || !IsMine(*pwalletMain, address))
+            if (!ExtractDestination(txout.scriptPubKey, address))
+                continue;
+
+            isminefilter mine = IsMine(*pwalletMain, address);
+            if(!(mine & filter))
                 continue;
 
             tallyitem& item = mapTally[address];
             item.nAmount += txout.nValue;
             item.nConf = min(item.nConf, nDepth);
             item.txids.push_back(wtx.GetHash());
+            if (mine & ISMINE_WATCH_ONLY)
+                item.fIsWatchonly = true;
         }
     }
 
@@ -985,10 +1003,12 @@ Value ListReceived(const Array& params, bool fByAccounts)
 
         int64_t nAmount = 0;
         int nConf = std::numeric_limits<int>::max();
+        bool fIsWatchonly = false;
         if (it != mapTally.end())
         {
             nAmount = (*it).second.nAmount;
             nConf = (*it).second.nConf;
+            fIsWatchonly = (*it).second.fIsWatchonly;
         }
 
         if (fByAccounts)
@@ -996,10 +1016,13 @@ Value ListReceived(const Array& params, bool fByAccounts)
             tallyitem& item = mapAccountTally[strAccount];
             item.nAmount += nAmount;
             item.nConf = min(item.nConf, nConf);
+            item.fIsWatchonly = fIsWatchonly;
         }
         else
         {
             Object obj;
+            if(fIsWatchonly)
+                obj.push_back(Pair("involvesWatchonly", true));
             obj.push_back(Pair("address",       address.ToString()));
             obj.push_back(Pair("account",       strAccount));
             obj.push_back(Pair("amount",        ValueFromAmount(nAmount)));
@@ -1024,6 +1047,8 @@ Value ListReceived(const Array& params, bool fByAccounts)
             int64_t nAmount = (*it).second.nAmount;
             int nConf = (*it).second.nConf;
             Object obj;
+            if((*it).second.fIsWatchonly)
+                obj.push_back(Pair("involvesWatchonly", true));
             obj.push_back(Pair("account",       (*it).first));
             obj.push_back(Pair("amount",        ValueFromAmount(nAmount)));
             obj.push_back(Pair("confirmations", (nConf == std::numeric_limits<int>::max() ? 0 : nConf)));
@@ -1036,17 +1061,19 @@ Value ListReceived(const Array& params, bool fByAccounts)
 
 Value listreceivedbyaddress(const Array& params, bool fHelp)
 {
-    if (fHelp || params.size() > 2)
+    if (fHelp || params.size() > 3)
         throw runtime_error(
-            "listreceivedbyaddress ( minconf includeempty )\n"
+            "listreceivedbyaddress ( minconf includeempty includeWatchonly)\n"
             "\nList balances by receiving address.\n"
             "\nArguments:\n"
             "1. minconf       (numeric, optional, default=1) The minimum number of confirmations before payments are included.\n"
             "2. includeempty  (numeric, optional, dafault=false) Whether to include addresses that haven't received any payments.\n"
+            "3. includeWatchonly (bool, optional, default=false) Whether to include watchonly addresses (see 'importaddress').\n"
 
             "\nResult:\n"
             "[\n"
             "  {\n"
+            "    \"involvesWatchonly\" : \"true\",    (bool) Only returned if imported addresses were involved in transaction\n"
             "    \"address\" : \"receivingaddress\",  (string) The receiving address\n"
             "    \"account\" : \"accountname\",       (string) The account of the receiving address. The default account is \"\".\n"
             "    \"amount\" : x.xxx,                  (numeric) The total amount in btc received by the address\n"
@@ -1058,7 +1085,7 @@ Value listreceivedbyaddress(const Array& params, bool fHelp)
             "\nExamples:\n"
             + HelpExampleCli("listreceivedbyaddress", "")
             + HelpExampleCli("listreceivedbyaddress", "6 true")
-            + HelpExampleRpc("listreceivedbyaddress", "6, true")
+            + HelpExampleRpc("listreceivedbyaddress", "6, true, true")
         );
 
     return ListReceived(params, false);
@@ -1066,17 +1093,19 @@ Value listreceivedbyaddress(const Array& params, bool fHelp)
 
 Value listreceivedbyaccount(const Array& params, bool fHelp)
 {
-    if (fHelp || params.size() > 2)
+    if (fHelp || params.size() > 3)
         throw runtime_error(
-            "listreceivedbyaccount ( minconf includeempty )\n"
+            "listreceivedbyaccount ( minconf includeempty includeWatchonly)\n"
             "\nList balances by account.\n"
             "\nArguments:\n"
             "1. minconf      (numeric, optional, default=1) The minimum number of confirmations before payments are included.\n"
             "2. includeempty (boolean, optional, default=false) Whether to include accounts that haven't received any payments.\n"
+            "3. includeWatchonly (bool, optional, default=false) Whether to include watchonly addresses (see 'importaddress').\n"
 
             "\nResult:\n"
             "[\n"
             "  {\n"
+            "    \"involvesWatchonly\" : \"true\",    (bool) Only returned if imported addresses were involved in transaction\n"
             "    \"account\" : \"accountname\",  (string) The account name of the receiving account\n"
             "    \"amount\" : x.xxx,             (numeric) The total amount received by addresses with this account\n"
             "    \"confirmations\" : n           (numeric) The number of confirmations of the most recent transaction included\n"
@@ -1087,7 +1116,7 @@ Value listreceivedbyaccount(const Array& params, bool fHelp)
             "\nExamples:\n"
             + HelpExampleCli("listreceivedbyaccount", "")
             + HelpExampleCli("listreceivedbyaccount", "6 true")
-            + HelpExampleRpc("listreceivedbyaccount", "6, true")
+            + HelpExampleRpc("listreceivedbyaccount", "6, true, true")
         );
 
     return ListReceived(params, true);
@@ -1100,16 +1129,17 @@ static void MaybePushAddress(Object & entry, const CTxDestination &dest)
         entry.push_back(Pair("address", addr.ToString()));
 }
 
-void ListTransactions(const CWalletTx& wtx, const string& strAccount, int nMinDepth, bool fLong, Array& ret)
+void ListTransactions(const CWalletTx& wtx, const string& strAccount, int nMinDepth, bool fLong, Array& ret, const isminefilter& filter)
 {
     int64_t nFee;
     string strSentAccount;
     list<pair<CTxDestination, int64_t> > listReceived;
     list<pair<CTxDestination, int64_t> > listSent;
 
-    wtx.GetAmounts(listReceived, listSent, nFee, strSentAccount);
+    wtx.GetAmounts(listReceived, listSent, nFee, strSentAccount, filter);
 
     bool fAllAccounts = (strAccount == string("*"));
+    bool involvesWatchonly = wtx.IsFromMe(ISMINE_WATCH_ONLY);
 
     // Sent
     if ((!listSent.empty() || nFee != 0) && (fAllAccounts || strAccount == strSentAccount))
@@ -1117,6 +1147,8 @@ void ListTransactions(const CWalletTx& wtx, const string& strAccount, int nMinDe
         BOOST_FOREACH(const PAIRTYPE(CTxDestination, int64_t)& s, listSent)
         {
             Object entry;
+            if(involvesWatchonly || (::IsMine(*pwalletMain, s.first) & ISMINE_WATCH_ONLY))
+                entry.push_back(Pair("involvesWatchonly", true));
             entry.push_back(Pair("account", strSentAccount));
             MaybePushAddress(entry, s.first);
             entry.push_back(Pair("category", "send"));
@@ -1139,6 +1171,8 @@ void ListTransactions(const CWalletTx& wtx, const string& strAccount, int nMinDe
             if (fAllAccounts || (account == strAccount))
             {
                 Object entry;
+                if(involvesWatchonly || (::IsMine(*pwalletMain, r.first) & ISMINE_WATCH_ONLY))
+                    entry.push_back(Pair("involvesWatchonly", true));
                 entry.push_back(Pair("account", account));
                 MaybePushAddress(entry, r.first);
                 if (wtx.IsCoinBase())
@@ -1182,16 +1216,16 @@ void AcentryToJSON(const CAccountingEntry& acentry, const string& strAccount, Ar
 
 Value listtransactions(const Array& params, bool fHelp)
 {
-    if (fHelp || params.size() > 3)
+    if (fHelp || params.size() > 4)
         throw runtime_error(
-            "listtransactions ( \"account\" count from )\n"
+            "listtransactions ( \"account\" count from includeWatchonly)\n"
             "\nReturns up to 'count' most recent transactions skipping the first 'from' transactions for account 'account'.\n"
             "\nArguments:\n"
             "1. \"account\"    (string, optional) The account name. If not included, it will list all transactions for all accounts.\n"
             "                                     If \"\" is set, it will list transactions for the default account.\n"
             "2. count          (numeric, optional, default=10) The number of transactions to return\n"
             "3. from           (numeric, optional, default=0) The number of transactions to skip\n"
-
+            "4. includeWatchonly (bool, optional, default=false) Include transactions to watchonly addresses (see 'importaddress')\n"
             "\nResult:\n"
             "[\n"
             "  {\n"
@@ -1251,6 +1285,10 @@ Value listtransactions(const Array& params, bool fHelp)
     int nFrom = 0;
     if (params.size() > 2)
         nFrom = params[2].get_int();
+    isminefilter filter = ISMINE_SPENDABLE;
+    if(params.size() > 3)
+        if(params[3].get_bool())
+            filter = filter | ISMINE_WATCH_ONLY;
 
     if (nCount < 0)
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Negative count");
@@ -1267,7 +1305,7 @@ Value listtransactions(const Array& params, bool fHelp)
     {
         CWalletTx *const pwtx = (*it).second.first;
         if (pwtx != 0)
-            ListTransactions(*pwtx, strAccount, 0, true, ret);
+            ListTransactions(*pwtx, strAccount, 0, true, ret, filter);
         CAccountingEntry *const pacentry = (*it).second.second;
         if (pacentry != 0)
             AcentryToJSON(*pacentry, strAccount, ret);
@@ -1295,12 +1333,13 @@ Value listtransactions(const Array& params, bool fHelp)
 
 Value listaccounts(const Array& params, bool fHelp)
 {
-    if (fHelp || params.size() > 1)
+    if (fHelp || params.size() > 2)
         throw runtime_error(
-            "listaccounts ( minconf )\n"
+            "listaccounts ( minconf includeWatchonly)\n"
             "\nReturns Object that has account names as keys, account balances as values.\n"
             "\nArguments:\n"
-            "1. minconf     (numeric, optional, default=1) Only onclude transactions with at least this many confirmations\n"
+            "1. minconf          (numeric, optional, default=1) Only onclude transactions with at least this many confirmations\n"
+            "2. includeWatchonly (bool, optional, default=false) Include balances in watchonly addresses (see 'importaddress')\n"
             "\nResult:\n"
             "{                      (json object where keys are account names, and values are numeric balances\n"
             "  \"account\": x.xxx,  (numeric) The property name is the account name, and the value is the total balance for the account.\n"
@@ -1320,10 +1359,14 @@ Value listaccounts(const Array& params, bool fHelp)
     int nMinDepth = 1;
     if (params.size() > 0)
         nMinDepth = params[0].get_int();
+    isminefilter includeWatchonly = ISMINE_SPENDABLE;
+    if(params.size() > 1)
+        if(params[1].get_bool())
+            includeWatchonly = includeWatchonly | ISMINE_WATCH_ONLY;
 
     map<string, int64_t> mapAccountBalances;
     BOOST_FOREACH(const PAIRTYPE(CTxDestination, CAddressBookData)& entry, pwalletMain->mapAddressBook) {
-        if (IsMine(*pwalletMain, entry.first)) // This address belongs to me
+        if (IsMine(*pwalletMain, entry.first) & includeWatchonly) // This address belongs to me
             mapAccountBalances[entry.second.name] = 0;
     }
 
@@ -1337,7 +1380,7 @@ Value listaccounts(const Array& params, bool fHelp)
         int nDepth = wtx.GetDepthInMainChain();
         if (wtx.GetBlocksToMaturity() > 0 || nDepth < 0)
             continue;
-        wtx.GetAmounts(listReceived, listSent, nFee, strSentAccount);
+        wtx.GetAmounts(listReceived, listSent, nFee, strSentAccount, includeWatchonly);
         mapAccountBalances[strSentAccount] -= nFee;
         BOOST_FOREACH(const PAIRTYPE(CTxDestination, int64_t)& s, listSent)
             mapAccountBalances[strSentAccount] -= s.second;
@@ -1367,11 +1410,12 @@ Value listsinceblock(const Array& params, bool fHelp)
 {
     if (fHelp)
         throw runtime_error(
-            "listsinceblock ( \"blockhash\" target-confirmations )\n"
+            "listsinceblock ( \"blockhash\" target-confirmations includeWatchonly)\n"
             "\nGet all transactions in blocks since block [blockhash], or all transactions if omitted\n"
             "\nArguments:\n"
             "1. \"blockhash\"   (string, optional) The block hash to list transactions since\n"
             "2. target-confirmations:    (numeric, optional) The confirmations required, must be 1 or more\n"
+            "3. includeWatchonly:        (bool, optional, default=false) Include transactions to watchonly addresses (see 'importaddress')"
             "\nResult:\n"
             "{\n"
             "  \"transactions\": [\n"
@@ -1407,6 +1451,7 @@ Value listsinceblock(const Array& params, bool fHelp)
 
     CBlockIndex *pindex = NULL;
     int target_confirms = 1;
+    isminefilter filter = ISMINE_SPENDABLE;
 
     if (params.size() > 0)
     {
@@ -1426,6 +1471,10 @@ Value listsinceblock(const Array& params, bool fHelp)
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter");
     }
 
+    if(params.size() > 2)
+        if(params[2].get_bool())
+            filter = filter | ISMINE_WATCH_ONLY;
+
     int depth = pindex ? (1 + chainActive.Height() - pindex->nHeight) : -1;
 
     Array transactions;
@@ -1435,7 +1484,7 @@ Value listsinceblock(const Array& params, bool fHelp)
         CWalletTx tx = (*it).second;
 
         if (depth == -1 || tx.GetDepthInMainChain() < depth)
-            ListTransactions(tx, "*", 0, true, transactions);
+            ListTransactions(tx, "*", 0, true, transactions, filter);
     }
 
     CBlockIndex *pblockLast = chainActive[chainActive.Height() + 1 - target_confirms];
@@ -1450,12 +1499,13 @@ Value listsinceblock(const Array& params, bool fHelp)
 
 Value gettransaction(const Array& params, bool fHelp)
 {
-    if (fHelp || params.size() != 1)
+    if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
             "gettransaction \"txid\"\n"
             "\nGet detailed information about in-wallet transaction <txid>\n"
             "\nArguments:\n"
             "1. \"txid\"    (string, required) The transaction id\n"
+            "2. \"includeWatchonly\"    (bool, optional, default=false) Whether to include watchonly addresses in balance calculation and details[]\n"
             "\nResult:\n"
             "{\n"
             "  \"amount\" : x.xxx,        (numeric) The transaction amount in btc\n"
@@ -1492,24 +1542,29 @@ Value gettransaction(const Array& params, bool fHelp)
     uint256 hash;
     hash.SetHex(params[0].get_str());
 
+    isminefilter filter = ISMINE_SPENDABLE;
+    if(params.size() > 1)
+        if(params[1].get_bool())
+            filter = filter | ISMINE_WATCH_ONLY;
+
     Object entry;
     if (!pwalletMain->mapWallet.count(hash))
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid or non-wallet transaction id");
     const CWalletTx& wtx = pwalletMain->mapWallet[hash];
 
-    int64_t nCredit = wtx.GetCredit();
-    int64_t nDebit = wtx.GetDebit();
+    int64_t nCredit = wtx.GetCredit(filter);
+    int64_t nDebit = wtx.GetDebit(filter);
     int64_t nNet = nCredit - nDebit;
-    int64_t nFee = (wtx.IsFromMe() ? wtx.GetValueOut() - nDebit : 0);
+    int64_t nFee = (wtx.IsFromMe(filter) ? wtx.GetValueOut() - nDebit : 0);
 
     entry.push_back(Pair("amount", ValueFromAmount(nNet - nFee)));
-    if (wtx.IsFromMe())
+    if (wtx.IsFromMe(filter))
         entry.push_back(Pair("fee", ValueFromAmount(nFee)));
 
     WalletTxToJSON(wtx, entry);
 
     Array details;
-    ListTransactions(wtx, "*", 0, false, details);
+    ListTransactions(wtx, "*", 0, false, details, filter);
     entry.push_back(Pair("details", details));
 
     CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
diff --git a/src/script.cpp b/src/script.cpp
index e1b6985408..238a25e72d 100644
--- a/src/script.cpp
+++ b/src/script.cpp
@@ -1456,36 +1456,49 @@ public:
     bool operator()(const CScriptID &scriptID) const { return keystore->HaveCScript(scriptID); }
 };
 
-bool IsMine(const CKeyStore &keystore, const CTxDestination &dest)
+isminetype IsMine(const CKeyStore &keystore, const CTxDestination& dest)
 {
-    return boost::apply_visitor(CKeyStoreIsMineVisitor(&keystore), dest);
+    CScript script;
+    script.SetDestination(dest);
+    return IsMine(keystore, script);
 }
 
-bool IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
+isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
 {
     vector<valtype> vSolutions;
     txnouttype whichType;
-    if (!Solver(scriptPubKey, whichType, vSolutions))
-        return false;
+    if (!Solver(scriptPubKey, whichType, vSolutions)) {
+        if (keystore.HaveWatchOnly(scriptPubKey))
+            return ISMINE_WATCH_ONLY;
+        return ISMINE_NO;
+    }
 
     CKeyID keyID;
     switch (whichType)
     {
     case TX_NONSTANDARD:
     case TX_NULL_DATA:
-        return false;
+        break;
     case TX_PUBKEY:
         keyID = CPubKey(vSolutions[0]).GetID();
-        return keystore.HaveKey(keyID);
+        if (keystore.HaveKey(keyID))
+            return ISMINE_SPENDABLE;
+        break;
     case TX_PUBKEYHASH:
         keyID = CKeyID(uint160(vSolutions[0]));
-        return keystore.HaveKey(keyID);
+        if (keystore.HaveKey(keyID))
+            return ISMINE_SPENDABLE;
+        break;
     case TX_SCRIPTHASH:
     {
+        CScriptID scriptID = CScriptID(uint160(vSolutions[0]));
         CScript subscript;
-        if (!keystore.GetCScript(CScriptID(uint160(vSolutions[0])), subscript))
-            return false;
-        return IsMine(keystore, subscript);
+        if (keystore.GetCScript(scriptID, subscript)) {
+            isminetype ret = IsMine(keystore, subscript);
+            if (ret == ISMINE_SPENDABLE)
+                return ret;
+        }
+        break;
     }
     case TX_MULTISIG:
     {
@@ -1495,10 +1508,15 @@ bool IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
         // them) enable spend-out-from-under-you attacks, especially
         // in shared-wallet situations.
         vector<valtype> keys(vSolutions.begin()+1, vSolutions.begin()+vSolutions.size()-1);
-        return HaveKeys(keys, keystore) == keys.size();
+        if (HaveKeys(keys, keystore) == keys.size())
+            return ISMINE_SPENDABLE;
+        break;
     }
     }
-    return false;
+
+    if (keystore.HaveWatchOnly(scriptPubKey))
+        return ISMINE_WATCH_ONLY;
+    return ISMINE_NO;
 }
 
 bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet)
diff --git a/src/script.h b/src/script.h
index 7ab471f6e6..e36be2db9e 100644
--- a/src/script.h
+++ b/src/script.h
@@ -194,6 +194,17 @@ enum
     SCRIPT_VERIFY_NULLDUMMY = (1U << 4), // verify dummy stack item consumed by CHECKMULTISIG is of zero-length
 };
 
+/** IsMine() return codes */
+enum isminetype
+{
+    ISMINE_NO = 0,
+    ISMINE_WATCH_ONLY = 1,
+    ISMINE_SPENDABLE = 2,
+    ISMINE_ALL = ISMINE_WATCH_ONLY | ISMINE_SPENDABLE
+};
+/** used for bitflags of isminetype */
+typedef uint8_t isminefilter;
+
 // Mandatory script verification flags that all new blocks must comply with for
 // them to be valid. (but old blocks may not comply with) Currently just P2SH,
 // but in the future other flags may be added, such as a soft-fork to enforce
@@ -801,8 +812,8 @@ bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript&
 bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::vector<unsigned char> >& vSolutionsRet);
 int ScriptSigArgsExpected(txnouttype t, const std::vector<std::vector<unsigned char> >& vSolutions);
 bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType);
-bool IsMine(const CKeyStore& keystore, const CScript& scriptPubKey);
-bool IsMine(const CKeyStore& keystore, const CTxDestination &dest);
+isminetype IsMine(const CKeyStore& keystore, const CScript& scriptPubKey);
+isminetype IsMine(const CKeyStore& keystore, const CTxDestination& dest);
 void ExtractAffectedKeys(const CKeyStore &keystore, const CScript& scriptPubKey, std::vector<CKeyID> &vKeys);
 bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet);
 bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<CTxDestination>& addressRet, int& nRequiredRet);
diff --git a/src/test/wallet_tests.cpp b/src/test/wallet_tests.cpp
index 86a83f5163..3887efbd0d 100644
--- a/src/test/wallet_tests.cpp
+++ b/src/test/wallet_tests.cpp
@@ -46,7 +46,7 @@ static void add_coin(int64_t nValue, int nAge = 6*24, bool fIsFromMe = false, in
         wtx->fDebitCached = true;
         wtx->nDebitCached = 1;
     }
-    COutput output(wtx, nInput, nAge);
+    COutput output(wtx, nInput, nAge, true);
     vCoins.push_back(output);
 }
 
diff --git a/src/wallet.cpp b/src/wallet.cpp
index 090c1b5ab3..ea99b89a5a 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -149,6 +149,21 @@ bool CWallet::LoadCScript(const CScript& redeemScript)
     return CCryptoKeyStore::AddCScript(redeemScript);
 }
 
+bool CWallet::AddWatchOnly(const CScript &dest)
+{
+    if (!CCryptoKeyStore::AddWatchOnly(dest))
+        return false;
+    nTimeFirstKey = 1; // No birthday information for watch-only keys.
+    if (!fFileBacked)
+        return true;
+    return CWalletDB(strWalletFile).WriteWatchOnly(dest);
+}
+
+bool CWallet::LoadWatchOnly(const CScript &dest)
+{
+    return CCryptoKeyStore::AddWatchOnly(dest);
+}
+
 bool CWallet::Unlock(const SecureString& strWalletPassphrase)
 {
     CCrypter crypter;
@@ -684,7 +699,7 @@ void CWallet::EraseFromWallet(const uint256 &hash)
 }
 
 
-bool CWallet::IsMine(const CTxIn &txin) const
+isminetype CWallet::IsMine(const CTxIn &txin) const
 {
     {
         LOCK(cs_wallet);
@@ -693,14 +708,13 @@ bool CWallet::IsMine(const CTxIn &txin) const
         {
             const CWalletTx& prev = (*mi).second;
             if (txin.prevout.n < prev.vout.size())
-                if (IsMine(prev.vout[txin.prevout.n]))
-                    return true;
+                return IsMine(prev.vout[txin.prevout.n]);
         }
     }
-    return false;
+    return ISMINE_NO;
 }
 
-int64_t CWallet::GetDebit(const CTxIn &txin) const
+int64_t CWallet::GetDebit(const CTxIn &txin, const isminefilter& filter) const
 {
     {
         LOCK(cs_wallet);
@@ -709,7 +723,7 @@ int64_t CWallet::GetDebit(const CTxIn &txin) const
         {
             const CWalletTx& prev = (*mi).second;
             if (txin.prevout.n < prev.vout.size())
-                if (IsMine(prev.vout[txin.prevout.n]))
+                if (IsMine(prev.vout[txin.prevout.n]) & filter)
                     return prev.vout[txin.prevout.n].nValue;
         }
     }
@@ -718,17 +732,19 @@ int64_t CWallet::GetDebit(const CTxIn &txin) const
 
 bool CWallet::IsChange(const CTxOut& txout) const
 {
-    CTxDestination address;
-
     // TODO: fix handling of 'change' outputs. The assumption is that any
-    // payment to a TX_PUBKEYHASH that is mine but isn't in the address book
+    // payment to a script that is ours, but is not in the address book
     // is change. That assumption is likely to break when we implement multisignature
     // wallets that return change back into a multi-signature-protected address;
     // a better way of identifying which outputs are 'the send' and which are
     // 'the change' will need to be implemented (maybe extend CWalletTx to remember
     // which output, if any, was change).
-    if (ExtractDestination(txout.scriptPubKey, address) && ::IsMine(*this, address))
+    if (::IsMine(*this, txout.scriptPubKey))
     {
+        CTxDestination address;
+        if (!ExtractDestination(txout.scriptPubKey, address))
+            return true;
+
         LOCK(cs_wallet);
         if (!mapAddressBook.count(address))
             return true;
@@ -782,7 +798,7 @@ int CWalletTx::GetRequestCount() const
 }
 
 void CWalletTx::GetAmounts(list<pair<CTxDestination, int64_t> >& listReceived,
-                           list<pair<CTxDestination, int64_t> >& listSent, int64_t& nFee, string& strSentAccount) const
+                           list<pair<CTxDestination, int64_t> >& listSent, int64_t& nFee, string& strSentAccount, const isminefilter& filter) const
 {
     nFee = 0;
     listReceived.clear();
@@ -790,7 +806,7 @@ void CWalletTx::GetAmounts(list<pair<CTxDestination, int64_t> >& listReceived,
     strSentAccount = strFromAccount;
 
     // Compute fee:
-    int64_t nDebit = GetDebit();
+    int64_t nDebit = GetDebit(filter);
     if (nDebit > 0) // debit>0 means we signed/sent this transaction
     {
         int64_t nValueOut = GetValueOut();
@@ -800,7 +816,8 @@ void CWalletTx::GetAmounts(list<pair<CTxDestination, int64_t> >& listReceived,
     // Sent/received.
     BOOST_FOREACH(const CTxOut& txout, vout)
     {
-        bool fIsMine;
+        isminetype fIsMine = pwallet->IsMine(txout);
+
         // Only need to handle txouts if AT LEAST one of these is true:
         //   1) they debit from us (sent)
         //   2) the output is to us (received)
@@ -809,9 +826,8 @@ void CWalletTx::GetAmounts(list<pair<CTxDestination, int64_t> >& listReceived,
             // Don't report 'change' txouts
             if (pwallet->IsChange(txout))
                 continue;
-            fIsMine = pwallet->IsMine(txout);
         }
-        else if (!(fIsMine = pwallet->IsMine(txout)))
+        else if (!(fIsMine & filter))
             continue;
 
         // In either case, we need to get the destination address
@@ -835,7 +851,7 @@ void CWalletTx::GetAmounts(list<pair<CTxDestination, int64_t> >& listReceived,
 }
 
 void CWalletTx::GetAccountAmounts(const string& strAccount, int64_t& nReceived,
-                                  int64_t& nSent, int64_t& nFee) const
+                                  int64_t& nSent, int64_t& nFee, const isminefilter& filter) const
 {
     nReceived = nSent = nFee = 0;
 
@@ -843,7 +859,7 @@ void CWalletTx::GetAccountAmounts(const string& strAccount, int64_t& nReceived,
     string strSentAccount;
     list<pair<CTxDestination, int64_t> > listReceived;
     list<pair<CTxDestination, int64_t> > listSent;
-    GetAmounts(listReceived, listSent, allFee, strSentAccount);
+    GetAmounts(listReceived, listSent, allFee, strSentAccount, filter);
 
     if (strAccount == strSentAccount)
     {
@@ -1055,7 +1071,52 @@ int64_t CWallet::GetImmatureBalance() const
     return nTotal;
 }
 
-// populate vCoins with vector of spendable COutputs
+int64_t CWallet::GetWatchOnlyBalance() const
+{
+    int64_t nTotal = 0;
+    {
+        LOCK(cs_wallet);
+        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        {
+            const CWalletTx* pcoin = &(*it).second;
+            if (pcoin->IsTrusted())
+                nTotal += pcoin->GetAvailableWatchOnlyCredit();
+        }
+    }
+    
+    return nTotal;
+}
+
+int64_t CWallet::GetUnconfirmedWatchOnlyBalance() const
+{
+    int64_t nTotal = 0;
+    {
+        LOCK(cs_wallet);
+        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        {
+            const CWalletTx* pcoin = &(*it).second;
+            if (!IsFinalTx(*pcoin) || (!pcoin->IsTrusted() && pcoin->GetDepthInMainChain() == 0))
+                nTotal += pcoin->GetAvailableWatchOnlyCredit();
+        }
+    }
+    return nTotal;
+}
+
+int64_t CWallet::GetImmatureWatchOnlyBalance() const
+{
+    int64_t nTotal = 0;
+    {
+        LOCK(cs_wallet);
+        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        {
+            const CWalletTx* pcoin = &(*it).second;
+            nTotal += pcoin->GetImmatureWatchOnlyCredit();
+        }
+    }
+    return nTotal;
+}
+
+// populate vCoins with vector of available COutputs.
 void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const CCoinControl *coinControl) const
 {
     vCoins.clear();
@@ -1081,10 +1142,11 @@ void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const
                 continue;
 
             for (unsigned int i = 0; i < pcoin->vout.size(); i++) {
-                if (!(IsSpent(wtxid, i)) && IsMine(pcoin->vout[i]) &&
+                isminetype mine = IsMine(pcoin->vout[i]);
+                if (!(IsSpent(wtxid, i)) && mine != ISMINE_NO &&
                     !IsLockedCoin((*it).first, i) && pcoin->vout[i].nValue > 0 &&
                     (!coinControl || !coinControl->HasSelected() || coinControl->IsSelected((*it).first, i)))
-                        vCoins.push_back(COutput(pcoin, i, nDepth));
+                        vCoins.push_back(COutput(pcoin, i, nDepth, mine & ISMINE_SPENDABLE));
             }
         }
     }
@@ -1151,11 +1213,14 @@ bool CWallet::SelectCoinsMinConf(int64_t nTargetValue, int nConfMine, int nConfT
 
     random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
 
-    BOOST_FOREACH(COutput output, vCoins)
+    BOOST_FOREACH(const COutput &output, vCoins)
     {
+        if (!output.fSpendable)
+            continue;
+
         const CWalletTx *pcoin = output.tx;
 
-        if (output.nDepth < (pcoin->IsFromMe() ? nConfMine : nConfTheirs))
+        if (output.nDepth < (pcoin->IsFromMe(ISMINE_ALL) ? nConfMine : nConfTheirs))
             continue;
 
         int i = output.i;
@@ -1244,6 +1309,8 @@ bool CWallet::SelectCoins(int64_t nTargetValue, set<pair<const CWalletTx*,unsign
     {
         BOOST_FOREACH(const COutput& out, vCoins)
         {
+            if(!out.fSpendable)
+                continue;
             nValueRet += out.tx->vout[out.i].nValue;
             setCoinsRet.insert(make_pair(out.tx, out.i));
         }
@@ -1804,7 +1871,7 @@ std::map<CTxDestination, int64_t> CWallet::GetAddressBalances()
                 continue;
 
             int nDepth = pcoin->GetDepthInMainChain();
-            if (nDepth < (pcoin->IsFromMe() ? 0 : 1))
+            if (nDepth < (pcoin->IsFromMe(ISMINE_ALL) ? 0 : 1))
                 continue;
 
             for (unsigned int i = 0; i < pcoin->vout.size(); i++)
diff --git a/src/wallet.h b/src/wallet.h
index 62f13e4630..ab9550a984 100644
--- a/src/wallet.h
+++ b/src/wallet.h
@@ -229,6 +229,11 @@ public:
     /// Look up a destination data tuple in the store, return true if found false otherwise
     bool GetDestData(const CTxDestination &dest, const std::string &key, std::string *value) const;
 
+    // Adds a watch-only address to the store, and saves it to disk.
+    bool AddWatchOnly(const CScript &dest);
+    // Adds a watch-only address to the store, without saving it to disk (used by LoadWallet)
+    bool LoadWatchOnly(const CScript &dest);
+
     bool Unlock(const SecureString& strWalletPassphrase);
     bool ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase);
     bool EncryptWallet(const SecureString& strWalletPassphrase);
@@ -260,6 +265,9 @@ public:
     int64_t GetBalance() const;
     int64_t GetUnconfirmedBalance() const;
     int64_t GetImmatureBalance() const;
+    int64_t GetWatchOnlyBalance() const;
+    int64_t GetUnconfirmedWatchOnlyBalance() const;
+    int64_t GetImmatureWatchOnlyBalance() const;
     bool CreateTransaction(const std::vector<std::pair<CScript, int64_t> >& vecSend,
                            CWalletTx& wtxNew, CReserveKey& reservekey, int64_t& nFeeRet, std::string& strFailReason, const CCoinControl *coinControl = NULL);
     bool CreateTransaction(CScript scriptPubKey, int64_t nValue,
@@ -284,17 +292,17 @@ public:
 
     std::set<CTxDestination> GetAccountAddresses(std::string strAccount) const;
 
-    bool IsMine(const CTxIn& txin) const;
-    int64_t GetDebit(const CTxIn& txin) const;
-    bool IsMine(const CTxOut& txout) const
+    isminetype IsMine(const CTxIn& txin) const;
+    int64_t GetDebit(const CTxIn& txin, const isminefilter& filter) const;
+    isminetype IsMine(const CTxOut& txout) const
     {
         return ::IsMine(*this, txout.scriptPubKey);
     }
-    int64_t GetCredit(const CTxOut& txout) const
+    int64_t GetCredit(const CTxOut& txout, const isminefilter& filter) const
     {
         if (!MoneyRange(txout.nValue))
             throw std::runtime_error("CWallet::GetCredit() : value out of range");
-        return (IsMine(txout) ? txout.nValue : 0);
+        return ((IsMine(txout) & filter) ? txout.nValue : 0);
     }
     bool IsChange(const CTxOut& txout) const;
     int64_t GetChange(const CTxOut& txout) const
@@ -310,9 +318,9 @@ public:
                 return true;
         return false;
     }
-    bool IsFromMe(const CTransaction& tx) const
+    bool IsFromMe(const CTransaction& tx) const     // should probably be renamed to IsRelevantToMe
     {
-        return (GetDebit(tx) > 0);
+        return (GetDebit(tx, ISMINE_ALL) > 0);
     }
     bool IsConflicting(const CTransaction& tx) const
     {
@@ -321,23 +329,23 @@ public:
     	        return true;
    	    return false;
     }
-    int64_t GetDebit(const CTransaction& tx) const
+    int64_t GetDebit(const CTransaction& tx, const isminefilter& filter) const
     {
         int64_t nDebit = 0;
         BOOST_FOREACH(const CTxIn& txin, tx.vin)
         {
-            nDebit += GetDebit(txin);
+            nDebit += GetDebit(txin, filter);
             if (!MoneyRange(nDebit))
                 throw std::runtime_error("CWallet::GetDebit() : value out of range");
         }
         return nDebit;
     }
-    int64_t GetCredit(const CTransaction& tx) const
+    int64_t GetCredit(const CTransaction& tx, const isminefilter& filter) const
     {
         int64_t nCredit = 0;
         BOOST_FOREACH(const CTxOut& txout, tx.vout)
         {
-            nCredit += GetCredit(txout);
+            nCredit += GetCredit(txout, filter);
             if (!MoneyRange(nCredit))
                 throw std::runtime_error("CWallet::GetCredit() : value out of range");
         }
@@ -483,11 +491,19 @@ public:
     mutable bool fCreditCached;
     mutable bool fImmatureCreditCached;
     mutable bool fAvailableCreditCached;
+    mutable bool fWatchDebitCached;
+    mutable bool fWatchCreditCached;
+    mutable bool fImmatureWatchCreditCached;
+    mutable bool fAvailableWatchCreditCached;
     mutable bool fChangeCached;
     mutable int64_t nDebitCached;
     mutable int64_t nCreditCached;
     mutable int64_t nImmatureCreditCached;
     mutable int64_t nAvailableCreditCached;
+    mutable int64_t nWatchDebitCached;
+    mutable int64_t nWatchCreditCached;
+    mutable int64_t nImmatureWatchCreditCached;
+    mutable int64_t nAvailableWatchCreditCached;
     mutable int64_t nChangeCached;
 
     CWalletTx()
@@ -524,11 +540,19 @@ public:
         fCreditCached = false;
         fImmatureCreditCached = false;
         fAvailableCreditCached = false;
+        fWatchDebitCached = false;
+        fWatchCreditCached = false;
+        fImmatureWatchCreditCached = false;
+        fAvailableWatchCreditCached = false;
         fChangeCached = false;
         nDebitCached = 0;
         nCreditCached = 0;
         nImmatureCreditCached = 0;
         nAvailableCreditCached = 0;
+        nWatchDebitCached = 0;
+        nWatchCreditCached = 0;
+        nAvailableWatchCreditCached = 0;
+        nImmatureWatchCreditCached = 0;
         nChangeCached = 0;
         nOrderPos = -1;
     }
@@ -581,6 +605,10 @@ public:
     {
         fCreditCached = false;
         fAvailableCreditCached = false;
+        fWatchDebitCached = false;
+        fWatchCreditCached = false;
+        fAvailableWatchCreditCached = false;
+        fImmatureWatchCreditCached = false;
         fDebitCached = false;
         fChangeCached = false;
     }
@@ -591,15 +619,36 @@ public:
         MarkDirty();
     }
 
-    int64_t GetDebit() const
+    // filter decides which addresses will count towards the debit
+    int64_t GetDebit(const isminefilter& filter) const
     {
         if (vin.empty())
             return 0;
-        if (fDebitCached)
-            return nDebitCached;
-        nDebitCached = pwallet->GetDebit(*this);
-        fDebitCached = true;
-        return nDebitCached;
+
+        int64_t debit = 0;
+        if(filter & ISMINE_SPENDABLE)
+        {
+            if (fDebitCached)
+                debit += nDebitCached;
+            else
+            {
+                nDebitCached = pwallet->GetDebit(*this, ISMINE_SPENDABLE);
+                fDebitCached = true;
+                debit += nDebitCached;
+            }
+        }
+        if(filter & ISMINE_WATCH_ONLY)
+        {
+            if(fWatchDebitCached)
+                debit += nWatchDebitCached;
+            else
+            {
+                nWatchDebitCached = pwallet->GetDebit(*this, ISMINE_WATCH_ONLY);
+                fWatchDebitCached = true;
+                debit += nWatchDebitCached;
+            }
+        }
+        return debit;
     }
 
     int64_t GetCredit(bool fUseCache=true) const
@@ -611,7 +660,7 @@ public:
         // GetBalance can assume transactions in mapWallet won't change
         if (fUseCache && fCreditCached)
             return nCreditCached;
-        nCreditCached = pwallet->GetCredit(*this);
+        nCreditCached = pwallet->GetCredit(*this, ISMINE_ALL);
         fCreditCached = true;
         return nCreditCached;
     }
@@ -622,7 +671,7 @@ public:
         {
             if (fUseCache && fImmatureCreditCached)
                 return nImmatureCreditCached;
-            nImmatureCreditCached = pwallet->GetCredit(*this);
+            nImmatureCreditCached = pwallet->GetCredit(*this, ISMINE_SPENDABLE);
             fImmatureCreditCached = true;
             return nImmatureCreditCached;
         }
@@ -649,7 +698,7 @@ public:
             if (!pwallet->IsSpent(hashTx, i))
             {
                 const CTxOut &txout = vout[i];
-                nCredit += pwallet->GetCredit(txout);
+                nCredit += pwallet->GetCredit(txout, ISMINE_SPENDABLE);
                 if (!MoneyRange(nCredit))
                     throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
             }
@@ -660,6 +709,48 @@ public:
         return nCredit;
     }
 
+    int64_t GetImmatureWatchOnlyCredit(const bool& fUseCache=true) const
+    {
+        if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
+        {
+            if (fUseCache && fImmatureWatchCreditCached)
+                return nImmatureWatchCreditCached;
+            nImmatureWatchCreditCached = pwallet->GetCredit(*this, ISMINE_WATCH_ONLY);
+            fImmatureWatchCreditCached = true;
+            return nImmatureWatchCreditCached;
+        }
+
+        return 0;
+    }
+
+    int64_t GetAvailableWatchOnlyCredit(const bool& fUseCache=true) const
+    {
+        if (pwallet == 0)
+            return 0;
+
+        // Must wait until coinbase is safely deep enough in the chain before valuing it
+        if (IsCoinBase() && GetBlocksToMaturity() > 0)
+            return 0;
+
+        if (fUseCache && fAvailableWatchCreditCached)
+            return nAvailableWatchCreditCached;
+
+        int64_t nCredit = 0;
+        for (unsigned int i = 0; i < vout.size(); i++)
+        {
+            if (!pwallet->IsSpent(GetHash(), i))
+            {
+                const CTxOut &txout = vout[i];
+                nCredit += pwallet->GetCredit(txout, ISMINE_WATCH_ONLY);
+                if (!MoneyRange(nCredit))
+                    throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
+            }
+        }
+
+        nAvailableWatchCreditCached = nCredit;
+        fAvailableWatchCreditCached = true;
+        return nCredit;
+    }
 
     int64_t GetChange() const
     {
@@ -671,14 +762,14 @@ public:
     }
 
     void GetAmounts(std::list<std::pair<CTxDestination, int64_t> >& listReceived,
-                    std::list<std::pair<CTxDestination, int64_t> >& listSent, int64_t& nFee, std::string& strSentAccount) const;
+                    std::list<std::pair<CTxDestination, int64_t> >& listSent, int64_t& nFee, std::string& strSentAccount, const isminefilter& filter) const;
 
     void GetAccountAmounts(const std::string& strAccount, int64_t& nReceived,
-                           int64_t& nSent, int64_t& nFee) const;
+                           int64_t& nSent, int64_t& nFee, const isminefilter& filter) const;
 
-    bool IsFromMe() const
+    bool IsFromMe(const isminefilter& filter) const
     {
-        return (GetDebit() > 0);
+        return (GetDebit(filter) > 0);
     }
 
     bool IsTrusted() const
@@ -691,7 +782,7 @@ public:
             return true;
         if (nDepth < 0)
             return false;
-        if (!bSpendZeroConfChange || !IsFromMe()) // using wtx's cached debit
+        if (!bSpendZeroConfChange || !IsFromMe(ISMINE_ALL)) // using wtx's cached debit
             return false;
 
         // Trusted if all inputs are from us and are in the mempool:
@@ -702,7 +793,7 @@ public:
             if (parent == NULL)
                 return false;
             const CTxOut& parentOut = parent->vout[txin.prevout.n];
-            if (!pwallet->IsMine(parentOut))
+            if (pwallet->IsMine(parentOut) != ISMINE_SPENDABLE)
                 return false;
         }
         return true;
@@ -727,10 +818,11 @@ public:
     const CWalletTx *tx;
     int i;
     int nDepth;
+    bool fSpendable;
 
-    COutput(const CWalletTx *txIn, int iIn, int nDepthIn)
+    COutput(const CWalletTx *txIn, int iIn, int nDepthIn, bool fSpendableIn)
     {
-        tx = txIn; i = iIn; nDepth = nDepthIn;
+        tx = txIn; i = iIn; nDepth = nDepthIn; fSpendable = fSpendableIn;
     }
 
     std::string ToString() const
diff --git a/src/walletdb.cpp b/src/walletdb.cpp
index 3ce2ef019c..a95baf83d0 100644
--- a/src/walletdb.cpp
+++ b/src/walletdb.cpp
@@ -112,6 +112,12 @@ bool CWalletDB::WriteCScript(const uint160& hash, const CScript& redeemScript)
     return Write(std::make_pair(std::string("cscript"), hash), redeemScript, false);
 }
 
+bool CWalletDB::WriteWatchOnly(const CScript &dest)
+{
+    nWalletDBUpdated++;
+    return Write(std::make_pair(std::string("watchs"), dest), '1');
+}
+
 bool CWalletDB::WriteBestBlock(const CBlockLocator& locator)
 {
     nWalletDBUpdated++;
@@ -404,6 +410,19 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
                     wss.fAnyUnordered = true;
             }
         }
+        else if (strType == "watchs")
+        {
+            CScript script;
+            ssKey >> script;
+            char fYes;
+            ssValue >> fYes;
+            if (fYes == '1')
+                pwallet->LoadWatchOnly(script);
+
+            // Watch-only addresses have no birthday information for now,
+            // so set the wallet birthday to the beginning of time.
+            pwallet->nTimeFirstKey = 1;
+        }
         else if (strType == "key" || strType == "wkey")
         {
             CPubKey vchPubKey;
diff --git a/src/walletdb.h b/src/walletdb.h
index 8eb716acbb..58b4571b16 100644
--- a/src/walletdb.h
+++ b/src/walletdb.h
@@ -7,6 +7,7 @@
 
 #include "db.h"
 #include "key.h"
+#include "keystore.h"
 
 #include <list>
 #include <stdint.h>
@@ -93,6 +94,8 @@ public:
 
     bool WriteCScript(const uint160& hash, const CScript& redeemScript);
 
+    bool WriteWatchOnly(const CScript &script);
+
     bool WriteBestBlock(const CBlockLocator& locator);
     bool ReadBestBlock(CBlockLocator& locator);