Invicta Men's 'Reserve' Quartz Stainless Steel Casual Watch, Color:Two Tone (Model: 16950) Chronograph with 1/10th, 60 second and 30 minute sub dials 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