A true “superwatch,” it had been powered by the manually wound Calibre 2896, which involved a tourbillon, an influence reserve indicator, along with a dynamographe, a device that displays mainspring torque. More noteworthy even than these features had been two substantial shock absorbers — visible about the watch’s dial — https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/