Ballon Bleu de Cartier watch, 42 mm, Manufacture self-winding mechanical movement.Steel case, fluted crown in 18K pink gold decorated with a synthetic cabochon-shaped spinel, silvered guilloché opaline dial, golden Roman numerals, blued steel sword-shaped hands, sapphire crystal, 18K pink gold and steel bracelet, calendar aperture at 3 o'clock.Case dimensions: diameter: 42 mm, thickness: 13 mm.Water-resistant to 3 bar (approx.30 meters/100 feet).