Victorinox Swiss Army Men's 'Summit XLT' Swiss Quartz Stainless Steel and Rubber Casual Watch, Color:Black (Model: 24001) Swiss-Quartz movement Durable sapphire crystal protects watch from scratches Case diameter: 39 mm Stainless-steel case Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving