Ronde Solo de Cartier watch, 42 mm, self-winding mechanical movement. Steel case, pearly crown set with a synthetic cabochon spinel, silver opaline dial, blued steel sword-shaped hands, sapphire crystal, interchangeable black grained calfskin strap, steel double adjustable folding buckle, date window at window at 3 o'clock. 8.36 mm thick. Waterproof up to 30 meters.