Ballon Bleu de Cartier watch, 36 mm, mechanical movement with automatic winding. Steel case, fluted crown decorated with a synthetic spinel cabochon, silvered guilloché opaline dial, Roman numerals, blued-steel sword-shaped hands, sapphire crystal, steel bracelet. Case dimensions: diameter: 36.6 mm, thickness: 12.05 mm. Water-resistant to 3 bar (approx. 30 meters/100 feet).