diff --git a/include/Uhrtypes/FR10x11.hpp b/include/Uhrtypes/FR10x11.hpp
index c94bba3..dcbeabd 100644
--- a/include/Uhrtypes/FR10x11.hpp
+++ b/include/Uhrtypes/FR10x11.hpp
@@ -27,7 +27,7 @@ class Fr10x11_t : public iUhrType {
 
     //------------------------------------------------------------------------------
 
-    // virtual const bool hasZwanzig() override { return true; }
+    virtual const bool hasZwanzig() override { return true; }
 
     //------------------------------------------------------------------------------
 
diff --git a/include/clockWork.hpp b/include/clockWork.hpp
index cd47785..bb2f6c4 100644
--- a/include/clockWork.hpp
+++ b/include/clockWork.hpp
@@ -549,7 +549,9 @@ void ClockWork::setMinute(uint8_t min, uint8_t &offsetHour, bool &fullHour) {
             usedUhrType->show(FrontWord::nach);
             break;
         case 20:
-            if (hasTwentyAndCheckForUsage()) {
+            if (hasTwentyAndCheckForUsage() && G.UhrtypeDef == Fr10x11) {
+                usedUhrType->show(FrontWord::min_20);
+                } else if (hasTwentyAndCheckForUsage() && G.UhrtypeDef != Fr10x11) {
                 usedUhrType->show(FrontWord::min_20);
                 usedUhrType->show(FrontWord::nach);
             } else {
@@ -564,7 +566,9 @@ void ClockWork::setMinute(uint8_t min, uint8_t &offsetHour, bool &fullHour) {
         case 23:
         case 24:
         case 25:
-            if (usedUhrType->hasTwentyfive()) {
+            if (usedUhrType->hasTwentyfive()&& G.UhrtypeDef == Fr10x11) {
+                usedUhrType->show(FrontWord::min_25);
+                } else if (usedUhrType->hasTwentyfive() && G.UhrtypeDef != Fr10x11) {
                 usedUhrType->show(FrontWord::min_25);
                 usedUhrType->show(FrontWord::nach);
             } else {
@@ -620,12 +624,13 @@ void ClockWork::setMinute(uint8_t min, uint8_t &offsetHour, bool &fullHour) {
             } else if (usedUhrType->hasTwentyfive()) {
                 usedUhrType->show(FrontWord::min_25);
                 usedUhrType->show(FrontWord::vor);
+                offsetHour = 1;
             } else {
                 usedUhrType->show(FrontWord::min_5);
                 usedUhrType->show(FrontWord::nach);
                 usedUhrType->show(FrontWord::halb);
+                offsetHour = 1;
             }
-            offsetHour = 1;
             break;
         case 36:
         case 37: