Jaquet Droz Grande Seconde Power Reserve Black Ceramic Clous De Paris Dial with black Clous de Paris decoration, applied ring with black treatment. Case in black ceramic. Self-winding mechanical movement. Power reserve of 68 hours, indicator at 9 o’clock.
Dimier is a sub-brand of Bovet, that is just as high-end, and also known as the watch movement maker of the group. Bovet didn't start Dimier, but rather acquired it. I've never seen a Dimer watch in the US - read more.