Cartier Midsize W10072R6 Must 21 Stainless Steel and 18K Gold Watch Swiss Made watch with Cartier Swiss-quartz movement Scratch-resistant-sapphire crystal; Case diameter: 31 mm Solid stainless steel and 18k yellow gold case and bracelet; Stainless steel stationary bezel with engraved gold detailed roman numerals Satin-finished silver dial with sword-shaped steel hands; 18kt yellow gold circular crown set with cabochon spinel crystal Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion