Masse Mystérieuse
Yet another sublime mystery watch from the Cartier Maison. Although she has departed Cartier, this has the hallmarks of Carole Forestier-Kasapi's ingenuity written all over it.
I'd say I'm disappointed to see it lacks a free-sprung balance at this price point, but in a somewhat satisfying twist, this setup manages to deftly sidestep the impact of gravity on timekeeping performance, helping to mitigate one of the downsides of regulating pins.
Image credit Cartier