Ballon Bleu de Cartier watch, 40 mm, automatic movement, 18K Rose gold, leather

Ballon Bleu de Cartier watch, 40 mm, mechanical movement with automatic winding, calibre 1847 MC. 18K rose gold case, fluted crown set with a blue sapphire cabochon, silvered guilloché dial, blued-steel sword-shaped hands, sapphire crystal, interchangeable brown alligator-skin strap, interchangeable 18K rose gold folding buckle, calendar aperture at 3 o’clock. Thickness: 12.4 mm. Water-resistant to 3 bar (approx. 30 metres).