Drive de Cartier watch, Manufacture mechanical movement with automatic winding, caliber 1904-PS MC. Steel case, length: 40 mm, width: 41 mm, case thickness: 11.25 mm, octagonal steel crown set with a faceted synthetic spinel. Black flinqué dial, white transferred Roman numerals, polished-steel leaf-shaped seconds hand, polished-steel sword-shaped hour and minute hands. Sapphire crystal. Semi-matte black leather strap, 18 mm interchangeable steel folding buckle. Calendar aperture at 3 o'clock, small seconds at 6 o'clock, sapphire case back. Water-resistant up to 3 bar (approx. 30 meters/100 feet).