Cartier Ballon Bleu watch, 40mm, automatic movement 1847 MC. 750/1000 rose gold case, fluted crown with cabochon sapphire, guilloché silver dial, blued steel sword-shaped hands, sapphire crystal, interchangeable brown alligator strap, 750/1000 rose gold deployant buckle, date display at 3 o'clock. Thickness: 12.4mm. Waterproof up to 3 bar (~30 meters). Features: