Swiss Legend Women's 10128-BKBD-GA Commander Chronograph Black Dial Watch Swiss quartz movement Sapphire crystal; black ceramic case and bracelet Chronograph functions with 60 second, 30 minute and 1/10th of a second subdials with gold tone hands; date function Black dial with gold tone hands and 7 white diamond hour markers; luminous; unidirectional bezel with gold tone arabic numerals; tachymeter scale on inner bezel; gold ion-plated pushers and screw-down crown with black ceramic cabochons Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving