Ronde Solo de Cartier watch, 42 mm, mechanical movement with automatic winding. Steel case, beaded crown set with a synthetic cabochon-shaped spinel, silvered opaline dial, blued-steel sword-shaped hands, sapphire crystal, black grained calfskin interchangeable strap, steel double adjustable folding buckle, calendar aperture at 3 o’clock. Case thickness: 8.36 mm. Water-resistant to 3 bar (approx. 30 meters/100 feet).