Cartier Midsize W10110T2 Must 21 Stainless Steel Watch Swiss Made watch with Cartier Calibre 690 Swiss-quartz movement Scratch-resistant sapphire crystal; Case diameter: 31 mm Stainless steel case and bracelet with deployment clasp; Stainless steel stationary bezel with engraved roman numerals Satin-finished silver dial with sword-shaped steel hands; Circular crown set with cabochon spinel crystal Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving