Ballon Bleu de Cartier watch, 33 mm, mechanical movement with automatic winding. 18K yellow gold case set with brilliant-cut diamonds. Fluted crown set with a sapphire cabochon. Silvered sunray-brushed dial Blued-steel sword-shaped hands. Sapphire crystal. 18K yellow gold bracelet. Case thickness: 10 mm. Water-resistant to 3 bar (approx. 30 meters).