A true “superwatch,” it had been driven with the manually wound Calibre 2896, which included a tourbillon, a power reserve indicator, and also a dynamographe, a device that displays mainspring torque. Much more noteworthy even than these options were two substantial shock absorbers — obvious on the watch’s dial — https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/