Tank Louis Cartier Watch, Large Model, Quartz Movement. 18K Yellow Gold Case, Beaded Crown Set with Sapphire Cabochon, Silver-grained Dial, Blued-steel Sword-shaped Hands, Mineral crystal, Black Alligator-skin Strap, 18K Yellow Gold Ardillon Buckle (Switched out Brown Strap), Calendar Aperture at 3 o'clock, Case Dimensions : 33.7 mm x 25.5 mm, Thickness : 6.35 mm. Water-resistant to 30 meters/100 feet