Rotonde de Cartier Astromystérieux watch, 43.5 mm, Manufacture mechanical movement with manual winding, caliber 9462 MC. Platinum 950‰ case, platinum 950‰ bezel set with 60 baguette-cut diamonds totaling 2.36 carats, beaded platinum 950‰ crown set with a brilliant-cut diamond of 0.14 carats, sunray guilloché dial, apple-shaped hands. Black alligator-skin strap, 18K white gold double adjustable folding buckle set with 37 baguette-cut diamonds totaling 0.85 carats. Astromystérieux complication: mysterious central tourbillon, consisting of the escapement, balance, main geartrain and barrel, and completing one full revolution in one hour. Individually numbered movement consisting of 408 parts, including 188 ball bearings and 25 rubies. Movement diameter: 39 mm, movement thickness: 5.9 mm, balance: 21,600 vibrations/hour, power reserve approx. 50 hours. Sapphire crystal and case back. Case thickness: 12 mm. Water-resistant to 3 bar (approx. 30 meters/100 feet).
The Rotonde de Cartier collection showcases the most advanced movements in Cartier Fine Watchmaking: the Astrorégulateur, minute repeater, Astrotourbillon and skeleton grande complication.