Ballon Bleu de Cartier watch, 36 mm, Manufacture mechanical movement with automatic winding. 18K yellow gold case set with brilliant-cut diamonds. Fluted crown set with a sapphire cabochon. Silver sunray-effect dial. Blued-steel sword-shaped hands. Sapphire crystal. Strap in brown alligator leather, with 18K yellow gold ardillon buckle. Case thickness: 10 mm. Water-resistant up to 3 bar (approx. 30 meters/100 feet).