Marathon General Purpose Quartz Wristwatch w/ Date and Trtitium Desert Tan. The best watches for any occasion Marathon General Purpose Quartz Wristwatch ensures that you are always punctual. With self-contained Tritium gas tubes on each hour marker and hand this Watch from Marathon Watches is far more efficient and practical than a photo-luminescent paint marker that requires an external light source to glow. The Marathon Tritium General Purpose Quartz Wristwatch has an End of Life (EOL) indicator that will advance the seconds hand once every four seconds letting you know when a battery change is needed. This Marathon Watch w/ Date and Tritium ensures that you are always aware of the time even in the darkest of situations. For a tough powerful and efficient watch that you can count on in any situation choose the Marathon General Purpose Quartz Wristwatch. Specifications for Marathon General Purpose Quartz Wristwatch w/ Date and Trtitium: Manufacturer: Marathon Application: Casual Gender: Unisex Dial Color: Black Case Material: 316L Surgical-Quality Stainless Steel Case Diameter: 34 mm Band/Strap Material: Nylon Wrist Band Type: Strap Movement: Swiss Quartz Illumination Type: Tritium Water Resistance Level: Water Resistant Water Resistant Mark: 3 atm Weight: 1 oz Country of Origin: Switzerland Features of Marathon General Purpose Quartz Wristwatch w/ Date and Trtitium MOVEMENT: High torque quartz ETA F6 Movement SCALE QUANTITY: 2 SCALE RANGE: 1-12 (13-14) LUMINOUS FEATURES: Tritium gas tubes CASE: Composite 316L Stainless Steel Back SUBMERSIBILITY: 3ATM CRYSTAL TYPE: Sapphire CROWN TYPE: Pressure DIMENSIONS: 34mm Diameter / 12mm thickness CALENDAR: Date Package Contents: Marathon General Purpose Quartz Wristwatch w/ Date and Trtitium Instructions Marathon WW194015DT-0103: General Purpose Quartz Wristwatch w/ Date and Trtitium Desert Tan