3 Answers

As I alluded to earlier, Wenger link cases, largely montre constant frederique in yellow gold, seem to have started with patek grand complication movement serial 888'036. By the 1960s, Vichet was out of business despite being the preferred case manufacturer of Patek, leaving Wenger to make the rest of the cases, including on the ref. 2438/1. The style of the Vichet case also influenced the Chronometre Contemporain II from Rexhep Rexhepi.

No one executes the Chinese Calendar as a complication better than Parmigiani, in my humble opinion. Perhaps it's the way that the broad Tonda link case works really well with an extremely busy dial or the fact link that their Chinese typeface choice is extremely legible, link all while keeping a sense of character (no pun intended).

The black PVD finished Caliber HUB1280 link features a column wheel at six o'clock a Unico signature link and the date link disc is entirely visible around the movement with the aperture set in the center of the 60-minute counter at 3 o'clock.