Cartier Tank Louis White Gold Blue Strap Ladies Watch W1541056. Quartz movement. 18K white gold case 22 mm x 29 mm. Circular grained crown set with a blue sapphire cabochon. . Scratch resistant mineral crystal. Silver grained dial with black Roman numerals. Blued steel sword shaped hands. Custom blue alligator leather strap with Cartier 18K white gold tang buckle. Excellent condition.