Ballon Bleu de Cartier watch, 42 mm. Mechanical movement with automatic winding, calibre 1847 MC. Rose gold 750/1000 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 rose gold 750/1000 folding buckle. Calendar aperture at 3 o'clock. Thickness: 13 mm. Water-resistant to 3 bar (approx. 30 metres).

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