diff --git a/api/current.txt b/api/current.txt
index 36aa4a013ce5d..5bf6ec17bed4f 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -19644,7 +19644,7 @@ package android.os {
     field public static final int JELLY_BEAN_MR1 = 17; // 0x11
     field public static final int JELLY_BEAN_MR2 = 18; // 0x12
     field public static final int KITKAT = 19; // 0x13
-    field public static final int KITKAT_WATCH = 10000; // 0x2710
+    field public static final int KITKAT_WATCH = 20; // 0x14
     field public static final int L = 10000; // 0x2710
   }
 
diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index 1ca6b90fa2b84..b11f7e4488b9e 100644
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -515,9 +515,16 @@ public class Build {
         public static final int KITKAT = 19;
 
         /**
-         * Android 4.5: KitKat for watches, snacks on the run.
+         * Android 4.4W: KitKat for watches, snacks on the run.
+         *
+         * <p>Applications targeting this or a later release will get these
+         * new changes in behavior:</p>
+         * <ul>
+         * <li>{@link android.app.AlertDialog} might not have a default background if the theme does
+         * not specify one.</li>
+         * </ul>
          */
-        public static final int KITKAT_WATCH = CUR_DEVELOPMENT; // STOPSHIP: update API level
+        public static final int KITKAT_WATCH = 20;
 
         /**
          * L!