Quote Originally Posted by lysanderxiii
(3133 on the left) Next, we see that the 3133 is thicker, over a full millimeter thicker. Even when the calendar parts are removed from the 3133, it still has a bit more stem height than a 7733, so it just cannot be used in cases intended for Swiss movements.
Did you notice whether the pushers were in the same relative position (height and distance) to the stem? Also, when you say that with the calendar parts removed, there is a bit more stem height, would you care to guess how much, in particular, do you think that there is .2 mm or less difference? (With a very small difference, after the calendar bits are gone, one might get things to fit by adjusting the dial thickness. One can lose .1mm of a dial without any problem, and, perhaps, .2mm, although that's pushing it.)

Best wishes,
Bob