Swiss Legend Men's 'Commander Pro' Quartz Stainless Steel and Silicone Watch, Color:Black (Model: 10070-GM-014) Chronograph Functions with 60 Second, 30 Minute and Day of The Week Sub dials; Date Window at 4:00; Unidirectional Bezel; Sapphitek Crystal; Screw-Down Crown; Luminous Grey Dial with Silver Tone and Pale Green Hands, Hour Markers and Arabic Numerals; Gunmetal Ion-Plated Stainless Steel Case; Black Silicone Strap with Gunmetal Ion-Plated Stainless Steel Accents 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