That when omega says 50 they really mean "you can dive to 50" with this, instead of "this is a dress watch don't swim with it" I'm going to speculate here that the failure point might be the case and not any gaskets, as they might have made the back thinn...
My experience through talks with Robert-Jan Broer is his direct instruction from Omega that a person can swim with a 50-meter Moonwatch. This means surface swimming, not diving to 50 meters. Omega's confidence might or might not mean the 50-meter rating i...