Invicta Men's 'Pro Diver' Quartz Stainless Steel Casual Watch, Color Silver-Toned (Model: 10581) Chronograph with 24 hour, 60 second and 60 minute sub dials and date display 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