Invicta Men's 'Pro Diver' Automatic Stainless Steel Casual Watch, Color:Silver-Toned (Model: 18911) Imported Chronograph with 12 hour, 60 second and 30 minute sub dials and day and date display 47mm stainless steel case with flame fusion crystal Automatic-self-wind Movement Case Diameter: 47mm Water resistant 500m:in general, suitable for professional marine activity and serious surface water sports, but not diving