I would go with the 3940 without a doubt. Size is the critical point here. When you are used to bigger watches you might have a problem with the 36mm, which wears even smaller than other 36mm watches. In case not, the 3940 is the original! So beautiful. For me the 3940 was unfortunately too small and I found the perfect fit with the 5940. But here the shape is not to everybody's taste. Try all these references on your wrist and follow your heart ๐