Ballon Bleu de Cartier watch, 33 mm. Self-winding mechanical movement. Rose gold 750/1000 case and fluted crown in rose gold 750/1000 set with a sapphire cabochon. Matt silvered stamped sunray dial set with 21 brilliant-cut diamonds totaling 0.10 carats. Blued-steel sword-shaped hands. Sapphire crystal. Strap in blue leather, rose gold 750/1000 ardillon buckle. Thickness: 0.4”. Water-resistant up to 3 bar (approx. 30 meters/100 feet).