Cartier Ballon Bleu de Cartier Watch – 40 mm Steel Case – Silvered Dial – Interchangeable Black Leather Strap – WSBB0039

40 mm steel case, 12.4 mm thick, fluted crown set with a synthetic cabochon-shaped spinel, sapphire crystal, silvered guilloche dial, caliber 1847 MC automatic movement, interchangeable black alligator leather strap, steel interchangeable deployant buckle. Water resistant to 3 bar (approx 30 meters/100 feet).