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

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