Ballon Bleu de Cartier watch, 33 mm, mechanical movement with automatic winding. Case in steel, fluted crown set with a synthetic cabochon-shaped spinel. Silvered guilloché dial set with 11 brilliant-cut diamonds totalling 0.05 carat. Blued-steel sword-shaped hands. Sapphire crystal. Interchangeable steel bracelet. Thickness: 9.96 mm. Water-resistant to 3 bar (approx. 30 metres).