Glam Rock Women's 'Miami' Swiss Quartz Stainless Steel and Silicone Casual Watch, Color:Black (Model: GR20104BB) Swiss-Quartz movement Mineral crystal with sapphire coating; Polished black ion-plated stainless steel case; Black silicone strap with alligator pattern Chronograph functions with 60 second, 30 minute and 12 hour black subdials; Date function Silver dial with silver tone hands and hour markers; Luminous; Black cabochon on stainless steel crown and pushers Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving