Invicta Men's 'Sea Base' Quartz Stainless Steel and Polyurethane Casual Watch, Color:Black (Model: 17970) Quartz with blue dial and gold luminous markers, rubber band, push crown 47mm stainless steel case with sapphire crystal Quartz Movement Case Diameter: 47mm Water resistant 200m (660ft):in general, suitable for professional marine activity and serious surface water sports, but not diving