Introduced in 2009, Cartier's Tank Americaine Flying Tourbillon, Ref. 3200 Pink Gold skeletonized wristwatch with tourbillon C, is powered by the brand's first in-house caliber 9452 MC that features a flying tourbiilon. A highlight of the Fine Watches, Geneva sale, open for bidding now. #SothebysWatches #CartierTank