Swiss Legend Men's 'Trimix Diver' Swiss Quartz Stainless Steel Casual Watch (Model: 13844-BLK) Chronograph Functions with 60 Second, 30 Minute and Day of The Week Sub dials; Date Window at 4:00 Black Dial with Black and Grey Hands and Dark Grey Arabic Numerals; Luminous; Crown with Screw-Down Protective Cap; Sapphitek Crystal; Black Ion-Plated Stainless Steel Case; Black Silicone Strap Swiss-quartz Movement Case Diameter: 46mm Water Resistant 200m (660ft):in General, Suitable for Professional Marine Activity and Serious Surface Water Sports, but not Diving