Cartier Mysterious Double Tourbillon pocket watch, 55 mm, Manufacture mechanical movement with manual winding, caliber 9454 MC. Watch and movement certified "Poinçon de Genève". 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.