Invicta Men's 'Reserve' Quartz Silver and Gold and Stainless Steel Casual Watch, Color:Two Tone (Model: 21605) Chronograph with 30 minute, 60 second and 1/10 sub dials and date display 52mm stainless steel case with flame fusion crystal Quartz Movement Case Diameter: 52mm Water resistant 200m (660ft):in general, suitable for professional marine activity and serious surface water sports, but not diving