Ballon Bleu de Cartier watch, 42 mm, self-winding mechanical movement. 18K pink gold case, fluted crown set with a blue cabochon-shaped sapphire, silvered guilloche lacquered opaline dial, Roman numerals, blued-steel sword-shaped hands, sapphire crystal, dark brown leather strap, 18K pink gold double adjustable folding buckle, calendar aperture at 3 o clock.