Swiss Legend Men's 18010-01 Tungsten Chronograph Black Dial Watch Swiss quartz movement Sapphire crystal; stainless steel case; black silicone strap Chronograph functions with 60 second, 30 minute and 1/10th of a second silver tone subdials with red hands; date function Black dial with silver tone hands and hour markers; red second hand; luminous; unidirectional bezel; red and black tachymeter scale on inner bezel; screw-down crown Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving