A true “superwatch,” it had been driven by the manually wound Calibre 2896, which incorporated a tourbillon, a power reserve indicator, and also a dynamographe, a tool that shows mainspring torque. Extra notable even than these capabilities have been two large shock absorbers — noticeable around the watch’s dial — https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/