Can anyone show me an image of a movement for a 33.3 CHRO mono-push? I mean a real mono-push. Some of the early watches had a single ‘olive-shaped’ button (at 2 o’clock) but also a reset button through the crown – and the mechanism was almost the same as the later two-button versions. But the first movement was a true mono-push. I’m not sure that the diagrams in AJTT show a real ‘monopush’ movement. The section on 33.3 CHRO (page 532) shows two watches (ref CK710), items 54 and 2577, which are the watches I am referring to. Here’s an image of an early 33.3 CHRO (mono-push) that doesn’t fit the data! Any help or comments would be appreciated.