Nixon Men's 'Tangent Sport' Swiss Quartz Stainless Steel Watch, Color:Black (Model: A505000) High strength 47 mm case with stainless steel and G10 construction and analog tide functionality Easy to read dial with 3-hand Swiss movement 4 o'clock tide sub dial and 8 o'clock seconds sub dial Swiss-quartz Movement Case Diameter: 47mm Water resistant 200m (660ft):in general, suitable for professional marine activity and serious surface water sports, but not diving