Swiss Legend Men's 20127-22-RN Commander Diamonds Chronograph Watch Precise Swiss-Quartz movement Scratch-Resistant Sapphire Crystal; Stainless Steel Case and Band Chronograph Functions with 60 Second, 30 Minute and 1/10th of a Second Subdials; Date Function Diamond Hour Markers; Luminous Hands; White Mother of Pearl Dial; Screw Down Crown Water resistant to 660 feet (200 M): suitable for recreational scuba diving