Cartier Complicated Watch- Rotonde Grande Flying Tourbillon Cartier Luxury Watches Swiss watches by wholesalewatches - January 23, 20160 The Rotonde de Cartier Grande Complication Skeleton watch one of the most complicated Cartier watches. The watch combining the mechanisms of a minute repeater with a perpetual calendar and a flying tourbillon, A few figures give the idea of the challenge represented by this watch: 578 components, 5 years of development,