Cartier Tank Solo Watch XL WSTA0029, mechanical movement with automatic winding. Steel case, beaded crown set with a synthetic cabochon-shaped spinel, silvered opaline dial, Roman numerals, blued-steel sword-shaped hands, sapphire crystal, grained calfskin interchangeable strap, steel double adjustable folding buckle, calendar aperture at 6 o’clock. Case dimensions: 31 mm x 40.85 mm, thickness: 7.65 mm. Water-resistant to 3 bar (approx. 30 metres/100 feet).