Ballon Bleu de Cartier watch, 40 mm, manufacture mechanical movement with automatic winding

caliber 1847 MC. 18K rose gold (750/1000) case, fluted crown set with a blue sapphire cabochon, silvered guilloch?? dial.

blued-steel sword-shaped hands, sapphire crystal, interchangeable brown alligator leather strap

interchangeable 18K rose gold (750/1000) deployant buckle, calendar aperture at 3 o??clock.?

interchangeable 18K rose gold (750/1000) deployant buckle, calendar aperture at 3 o??clock.

Thickness: 12.4 mm. Water-resistant up to 3 bar (approx. 30 meters/100 feet).