Rotonde de Cartier watch

Rotonde de Cartier Minute Repeater Mysterious Double Tourbillon watch, 45 mm, Manufacture mechanical movement with manual winding calibre 9507 MC. Titanium case, beaded titanium crown set with a blue sapphire cabochon, rhodium-finish steel sword-shaped hands. Black Gomma alligator skin strap, double adjustable folding white gold 750/1000 buckle. Individually numbered movement containing 448 parts including 45 jewels. Total movement diameter: 39.30 mm, movement thickness: 4.70 mm (6.05 mm with the tourbillon), balance: 21,600 vibrations/hour, power reserve approx. 3.5 days. Sapphire crystal and case back. Case thickness: 11.15 mm. Water-resistant to 3 bar (approx. 30 metres).