Cartier Ballon Bleu watch, 40mm, automatic mechanical movement 1847 MC. Steel case, fluted crown adorned with a synthetic spinel cabochon, blue sunray dial, silver glaive-shaped hands, sapphire crystal, interchangeable steel bracelet, date window at 3 o'clock. Thickness: 12.4mm. Water-resistant up to 3 bar (~30 meters). Features: