on the recently replaced Caliber 12 Monaco.
The modern Caliber 12 is a worthy descendent of the original Caliber 12. The Buren tractor in the original was chosen for its thinness, and that applies to the 2892/SW300 tractor in the 12. Both have the same (or nearly so) Dubois-Depraz module.
Unlike most iterations of cheaper modular chronographs, the DD module in the modern 12 is fully jeweled, for a total jewel count of 59 for the combined movement. The module also uses a vertical clutch, so the seconds hand does not jump when starting the chronograph.
Also unlike most cheaper iterations, the pusher feel is quite good, with a well-defined click but without the over-detented notchy feel of a 2894 (or a 7750, for that matter).
It’s a gorgeous watch, and fits my slimmed-down wrist (7.8”) better than a Monaco I tried a few years ago when I was 75 pounds heavier with an 8.2” wrist.
Because it was recently discontinued, and because the jewelry store that sold it to us was closing that local location, we got it for about the price of a used model. My wife bought it for our 20th (I bought her a Longines ladies chronometer), so it was a unique buying opportunity on many fronts.