Nixon Men's 'October Tide' Quartz Metal and Stainless Steel Watch, Color:Black (Model: A4742209-00) Made in USA or Imported 49mm Case Diameter Light, high-strength titanium 48.5 mm case with analog tide subdial and wider lugs for toughness Japanese-quartz Movement Water Resistant 200m (660ft):in General, Suitable for Professional Marine Activity and Serious Surface Water Sports, but not Diving