Cartier Rotonde de Cartier Watch WHRO0011

Cartier Cartier Mysterious Double Tourbillon Pocket Watch 55mm 18K white gold case with 18K gold chain and a rock crystal stand, 11.2mm thick, sapphire back, 18K beaded crown with a blue sapphire cabochon, sapphire crystal, black dial with 18K white gold guilloche, covered with black translucent enamel and rhodiumized steel sword-shaped hands, caliber 9454 MC manual movement with mysterious double tourbillon complication, approximately 52 hours of power reserve. Water resistant to 30 meters.