Ballon Bleu de Cartier watch
Ballon Bleu de Cartier watch, 42 mm. Mechanical movement with automatic winding, calibre 1847 MC. 18K rose gold case, fluted crown set with a sapphire cabochon, silvered guilloché lacquered opaline dial. Blued-steel sword-shaped hands. Sapphire crystal. Brown alligator-skin strap, interchangeable 18K rose gold folding buckle. Calendar aperture at 3 o'clock. Thickness: 13 mm. Water-resistant to 3 bar (approx. 30 metres).