Ballon Bleu de Cartier watch. 36 mm. self-winding mechanical movement. 18K pink gold case set with 123 brilliant-cut diamonds totaling 1.21 carats. fluted crown set with a sapphire cabochon. silvered guilloche lacquered opaline dial. blued-steel sword-shaped hands. sapphire crystal. purple leather strap. 16 mm 18K pink gold double adjustable folding buckle.