Invicta Men's 'Reserve' Quartz Stainless Steel Casual Watch, Color Black (Model: 16760) Chronograph with 60 second, 30 minute and 1/10th sub dials and day and date display 54mm stainless steel case with flame fusion crystal Quartz Movement Case Diameter: 54mm Water resistant 200m (660ft):in general, suitable for professional marine activity and serious surface water sports, but not diving