Cartier Men's W62019X6 Roadster Automatic Chronograph Watch Imported Swiss Made watch with Cartier Calibre 8510 Swiss-automatic movement; Functions without a battery; Powers automatically with the movement of your arms Solid barrel-shaped stainless steel case and triple-link polished stainless steel bracelet with brushed center links Interchangeable toile-linen band. Scratch-resistant-sapphire crystal; Case diameter: 40 mm Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving