1994 "semi-flying tourbillon" #09

Based on calibre 67 of IWC. "Semi-flying" tourbillon on ball bearing with upper bearing of the balance at the original balance cock. Carriage made of polished steel and brass. Monometal balance with "free-sprung" hairspring base on calibre IWC 9720. Stopsecond with little pusher. Antique solid gold case.