Rotonde de Cartier Mysterious Skeleton Double Tourbillon watch, 45 mm, Manufacture mechanical movement with manual winding, caliber 9465 MC. "Poinçon de Genève" certified watch and movement. Case in platinum, pearly crown in platinum set with a cabochon sapphire. Sword-shaped hands of blued steel. Semi-matte navy blue alligator skin strap, 18K rhodium-plated white gold double adjustable folding buckle. Hours, minutes, mysterious double tourbillon with skeletonized bridges in the shape of Roman numerals. Movement with individual numbering, 286 parts and 26 jewels. 39.70 mm diameter, 6.28 mm thick, 21,600 vibrations / hour balance wheel, power reserve of approximately 52 hours. Sapphire crystal and case back. Thickness 12.40 mm. Waterproof up to 30 meters. Limited and numbered edition of 30 pieces.