Drive de Cartier watch, Manufacture mechanical movement with automatic winding, calibre 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. Silvered flinqué dial, Roman numerals, blued-steel leaf-shaped seconds hand, blued-steel sword-shaped hour and minute hands. Sapphire crystal. Strap in semi-matt black leather, 18 mm interchangeable steel folding buckle. Calendar aperture at 3 o'clock, small seconds counter at 6 o'clock, sapphire case back. Water-resistant to 3 bar (approx. 30 metres).