Invicta 10577 Men`s Pro Diver Scuba Swiss Quartz Chronograph Interchangeable Strap Watch Chronograph with 60 second, 60 minute and 24 hour sub dials, luminous dial and markers with date display, push down crown 48mm stainless steel case with flame fusion crystal Quartz Movement Case Diameter: 48mm Water resistant 200m (660ft):in general, suitable for professional marine activity and serious surface water sports, but not diving