Swiss Legend Women's 10128-01-SA Commander Diamonds Analog Display Swiss Quartz Black Watch Swiss quartz movement Sapphitek crystal; black high grade ceramic case; black silicone strap Chronograph functions with 60 second, 30 minute and 1/10th of an hour subdials; date window at 4:00 Black textured dial with silver tone and white hands and Arabic numeral at 12:00 with silver tone and white diamond hour markers ; luminous; unidirectional black high grade ceramic bezel; tachymeter on inner bezel; screw-down crown Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving