Ronde Solo de Cartier watch, 36 mm, self-winding mechanical movement. Steel case, pearly steel crown set with a synthetic cabochon spinel, silvered opaline dial, blued steel sword-shaped hands, sapphire crystal, interchangeable black grained calfskin strap, steel double adjustable folding buckle. 9.46 mm thick. Waterproof up to 30 meters.