Chase-Durer Men's 224.2BR-BRA Trackmaster Pro Chronograph 2nd Edition Stainless Steel and Black Ion-Plated Watch Precise Swiss-quartz movement Scratch-resistant sapphire crystal Solid 316L brushed stainless steel case with combination; combination stainless steel bracelet with black ion-plated center links; screw-down crown and case back; unidirectional bezel with tachymeter readings Super-Luminova advanced illumination system; chronograph functions with 12-hour, 60-minute, and 1/10th second sub dials; carbon-fiber dial Water resistant to 660 feet (200 M): suitable for recreational scuba diving