Cartier Rotonde de Cartier Flying Tourbillon Watch - 40 mm Pink Gold Case - W155621540 mm by 10. 6 mm thick 18K pink gold case, sapphire back, beaded crown set with sapphire cabochon, sapphire crystal, white dial with silvered open work grid and Roman numerals with blued hands, caliber 9452 MC manual movement with flying tourbillon complication, seconds indicated by the C shaped tourbillon carriage, brown alligator strap with 18K gold buckle, buckle double deployant. Water resistant to 30 meters.