Ballon Bleu de Cartier watch, 40mm, automatic winding mechanical movement 1847 MC. Rose gold 750/1000 case, fluted crown with cabochon sapphire, dark gray sunray dial, rose gold sword-shaped hands, sapphire crystal, interchangeable gray alligator strap, interchangeable rose gold 750/1000 deployant buckle, date window at 3 o'clock. Thickness: 12.4mm. Water resistant up to 3 bar (~30 meters). Features: 