Cartier Ballon Bleu Watches. Small size (38.6mm) stainless steel case, 18K pink gold fluted crown with a blue synthetic spinel cabochon, silvered and lacquered sunray flinqué dial with 11 round diamonds and 1 black Roman numeral, quartz Cartier caliber 057 movement, stainless steel and 18K pink gold bracelet. Water resistant to