Watches Details: 18kt yellow gold case with steel case back. Black alligator strap. Roman numeral silvered opaline dial. Circular crown set with a sapphire cabochon. Sword-shaped blued steel hands. Quartz movement. Scratch resistant sapphire crystal. Deployment buckle. Case size 30mm x 23mm. Water resistant at 30 meters (100 feet). Cartier Tank Solo 18kt Yellow Gold and Steel Ladies Watch W1018755