A real “superwatch,” it had been driven because of the manually wound Calibre 2896, which provided a tourbillon, an influence reserve indicator, and a dynamographe, a device that shows mainspring torque. More noteworthy even than these features were being two substantial shock absorbers — visible within the watch’s dial — https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/