diff --git a/wear/src/main/java/info/nightscout/androidaps/watchfaces/RICTxWF01.java b/wear/src/main/java/info/nightscout/androidaps/watchfaces/RICTxWF01.java
index 8d7583912b..772af26400 100644
--- a/wear/src/main/java/info/nightscout/androidaps/watchfaces/RICTxWF01.java
+++ b/wear/src/main/java/info/nightscout/androidaps/watchfaces/RICTxWF01.java
@@ -14,6 +14,10 @@ import androidx.core.content.ContextCompat;
 
 import com.ustwo.clockwise.common.WatchFaceTime;
 import com.ustwo.clockwise.common.WatchMode;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
 import info.nightscout.androidaps.R;
 import info.nightscout.androidaps.interaction.menus.MainMenuActivity;
 
@@ -149,8 +153,21 @@ public class RICTxWF01 extends BaseWatchFace {
             mMinute.setTextSize(26);
             mHour.setLetterSpacing((float) 0);
             mMinute.setLetterSpacing((float) 0);
+
+            /* display week number */
+            Boolean isShowWeekNumber = sharedPrefs.getBoolean("show_weeknumber", false);
+            Log.i("---------------------------------","weeknumber refresh ");
+            TextView mWeekNumber= layoutView.findViewById(R.id.weeknumber);
+            if (isShowWeekNumber) {
+                mWeekNumber.setVisibility(View.VISIBLE);
+                mWeekNumber.setText("(" + (new SimpleDateFormat("ww")).format(new Date()) + ")");
+            } else {
+                mWeekNumber.setVisibility(View.GONE);
+                mWeekNumber.setText("");
+            }
         }
 
+
         /* @ToDo optimize font-size  --> when direction and time-ago is off, increase font-size of sgv */
 
     }
diff --git a/wear/src/main/res/layout/rect_activity_rictxwf01.xml b/wear/src/main/res/layout/rect_activity_rictxwf01.xml
index 3e56dff497..728d66f733 100644
--- a/wear/src/main/res/layout/rect_activity_rictxwf01.xml
+++ b/wear/src/main/res/layout/rect_activity_rictxwf01.xml
@@ -308,14 +308,32 @@
 
                         <TextView
                             android:id="@+id/dayname"
-                            android:layout_width="match_parent"
+                            android:layout_width="0dp"
                             android:layout_height="match_parent"
+                            android:layout_weight="5"
                             android:fontFamily="@font/roboto_condensed_regular"
                             android:text="DDD"
                             android:textAllCaps="true"
                             android:textColor="@color/white"
                             android:textFontWeight="400"
                             android:textSize="18sp" />
+                        <TextView
+                            android:id="@+id/weeknumber"
+                            android:layout_width="0dp"
+                            android:layout_height="match_parent"
+                            android:layout_weight="4"
+                            android:fontFamily="@font/roboto_condensed_light"
+                            android:text="ww"
+                            android:textAllCaps="true"
+                            android:textColor="@color/light_grey"
+                            android:textFontWeight="400"
+                            android:textSize="18sp"
+                            android:letterSpacing="-0.1"
+                            android:visibility="gone"/>
+                        <Space
+                            android:layout_width="0dp"
+                            android:layout_height="match_parent"
+                            android:layout_weight="3" />
                     </LinearLayout>
 
                     <!-- day number + month (short)-->
diff --git a/wear/src/main/res/layout/round_activity_rictxwf01.xml b/wear/src/main/res/layout/round_activity_rictxwf01.xml
index 1905d71253..8d4d99011c 100644
--- a/wear/src/main/res/layout/round_activity_rictxwf01.xml
+++ b/wear/src/main/res/layout/round_activity_rictxwf01.xml
@@ -308,14 +308,32 @@
 
                         <TextView
                             android:id="@+id/dayname"
-                            android:layout_width="match_parent"
+                            android:layout_width="0dp"
                             android:layout_height="match_parent"
+                            android:layout_weight="5"
                             android:fontFamily="@font/roboto_condensed_regular"
                             android:text="DDD"
                             android:textAllCaps="true"
                             android:textColor="@color/white"
                             android:textFontWeight="400"
                             android:textSize="18sp" />
+                        <TextView
+                            android:id="@+id/weeknumber"
+                            android:layout_width="0dp"
+                            android:layout_height="match_parent"
+                            android:layout_weight="4"
+                            android:fontFamily="@font/roboto_condensed_light"
+                            android:text="ww"
+                            android:textAllCaps="true"
+                            android:textColor="@color/light_grey"
+                            android:textFontWeight="400"
+                            android:textSize="18sp"
+                            android:letterSpacing="-0.1"
+                            android:visibility="gone"/>
+                        <Space
+                            android:layout_width="0dp"
+                            android:layout_height="match_parent"
+                            android:layout_weight="3" />
                     </LinearLayout>
 
                     <!-- day number + month (short)-->
diff --git a/wear/src/main/res/values/strings.xml b/wear/src/main/res/values/strings.xml
index dbff78b9d0..ec76e27583 100644
--- a/wear/src/main/res/values/strings.xml
+++ b/wear/src/main/res/values/strings.xml
@@ -152,5 +152,6 @@
     <string name="pref_choose_your_color">Choose your color</string>
     <string name="pref_choose_your_color_saturation">Choose your color saturation</string>
     <string name="pref_vibrate_hourly">vibrate hourly</string>
+    <string name="pref_show_weeknumber">Show Week number</string>
 
 </resources>
diff --git a/wear/src/main/res/xml/rictxwf01configuration.xml b/wear/src/main/res/xml/rictxwf01configuration.xml
index 99a685fa80..7c84e1572a 100644
--- a/wear/src/main/res/xml/rictxwf01configuration.xml
+++ b/wear/src/main/res/xml/rictxwf01configuration.xml
@@ -30,6 +30,13 @@
         app:wear_iconOff="@drawable/settings_off"
         app:wear_iconOn="@drawable/settings_on" />
 
+    <CheckBoxPreference
+        android:key="show_weeknumber"
+        android:title="@string/pref_show_weeknumber"
+        android:defaultValue="false"
+        app:wear_iconOff="@drawable/settings_off"
+        app:wear_iconOn="@drawable/settings_on" />
+
     <CheckBoxPreference
         android:key="rictxwf01_vibrateHourly"
         android:title="@string/pref_vibrate_hourly"