Invicta Men's 'Venom' Quartz Gold-Tone and Stainless Steel Casual Watch, Color:Gold (Model: 16805) Imported Chronograph with 60 second and 60 minute sub dials and tachymeter 51mm stainless steel case with flame fusion crystal Quartz Movement Case Diameter: 51mm Water resistant 200m (660ft):in general, suitable for professional marine activity and serious surface water sports, but not diving