Ballon Bleu de Cartier watch
Ballon Bleu de Cartier watch, 42 mm, self-winding mechanical movement. Case in 18K rose gold set with brilliant-cut diamonds. Fluted crown decorated with a sapphire cabochon. Silvered sunray-brushed dial. Blued-steel sword-shaped hands. Sapphire crystal. Bracelet in 18K rose gold. Calendar aperture at 3 o'clock. Case thickness: 13 mm. Water-resistant to 3 bar (~30 metres).