A real “superwatch,” it was powered because of the manually wound Calibre 2896, which integrated a tourbillon, an influence reserve indicator, in addition to a dynamographe, a tool that shows mainspring torque. Much more noteworthy even than these attributes were two big shock absorbers — seen within the watch’s dial https://www.watchesworld.com/a-guide-to-10-of-the-best-dress-watches/