Cartier Mysterious Double Tourbillon pocket watch, 55 mm, Manufacture mechanical movement with manual winding, caliber 9454 MC. 18K white gold case, beaded crown set with a sapphire cabochon, 18K white gold guilloché dial covered with black translucent enamel, rhodiumized steel sword-shaped hands. 18K gold chain. Stand in rock crystal, black jade and sterling silver. Mysterious double tourbillon complication. Movement consisting of 242 parts including 25 jewels. Movement diameter: 35.5 mm, movement thickness: 5 mm, balance: 21,600 vibrations/hour, power reserve approx. 52 hours. Sapphire crystal and case back. Case thickness: 11.2 mm. Water-resistant to 3 bar (approx. 30 meters/100 feet).
The Rotonde de Cartier watch showcases the most sophisticated movements in Fine Watchmaking: a central chronograph, flying tourbillon, and astrorégulateur.