Ballon Bleu de Cartier watch, 33 mm, mechanical movement with automatic winding. 18K pink gold case, fluted crown decorated with a blue sapphire cabochon, lacquered silvered guilloch? opaline dial, 12 Roman numerals, blued-steel sword-shaped hands, sapphire crystal, 18K pink gold bracelet. Case dimensions: diameter: 33 mm, thickness: 9.96 mm. Water-resistant to 3 bar (approx. 30 meters/100 feet).