Rotonde de Cartier watch
Rotonde de Cartier Skeleton watch, 42 mm, Manufacture mechanical movement with automatic winding, calibre 9621 MC. Platinum case, beaded crown set with a blue sapphire cabochon, polished steel Breguet-type hands. Blue alligator-skin strap, 18K white gold double adjustable folding buckle. Blue lacquer skeletonised bridges forming Roman numerals. Individually numbered movement consisting of 165 parts including 28 jewels. Movement diameter: 31 mm, movement thickness: 5.6 mm, balance: 28,800 vibrations/hour, power reserve approx. 48 hours. Sapphire crystal and case back. Case thickness: 11.8 mm. Water-resistant to 3 bar (approx. 30 metres).