Invicta Men's 20074SYB Speedway Analog Display Swiss Quartz Black Watch Chronograph with 60 second, 30 minute and 1/10 sub dials, push crown 51mm stainless steel case with flame fusion crystal Quartz Movement Case Diameter: 51mm Water resistant to 50m (165ft:in general, suitable for short periods of recreational swimming, but not diving or snorkeling