Ballon Bleu de Cartier watch, 33 mm, self-winding mechanical movement. Case in rose gold 750/1000, fluted crown set with a blue sapphire cabochon, silvered guilloché and lacquered opaline dial, 12 Roman numerals, sword-shaped hands in blued steel, sapphire crystal, strap in alligator skin, ardillon buckle in rose gold 750/1000. Case dimensions: diameter: 33 mm, case thickness: 9.96 mm, water-resistant to 3 bar (approx. 30 metres).