Armourlite Mountaineer Swiss Tritium Illuminated Watch Black Leather. Featuring shatterproof Armourglass crystal that has a hardness rating of 6000 Vickers whereas most watch crystals are only rated to 700 Vickers. For the utmost in reliability and timekeeping accuracy this watch is powered by a maintenance-free Swiss made Ronda 715 quartz movement with a date display at 3:00 and a low-battery indicator. The functional yet easy-to-read dial features Arabic numerals for both the 12 and 24 hour markings. Your watch becomes a lot more useful as you can easily tell the time in not only the day but also at night with the help of 15 self-powered tritium tubes that are set into each of the 3 hands and at every hour on the dial. The case and all components of the watch are constructed out of hypoallergenic and durable 316L stainless steel. The screw-down crown and caseback ensure an adventure-ready water-resistance of 100 meters. In lieu of the standard spring bar pins heavy-duty screw bars secure the band firmly in place for strenuous activities. Overall this watch will provide years of reliable performance no matter where you take it while looking stylish on your wrist. Specifications for Armourlite Mountaineer Swiss Tritium Illuminated Watch: Manufacturer: Armourlite Application: All Round Gender: Unisex Case Color: Black Case Material: 316L Surgical-Quality Stainless Steel Case Diameter: 42 mm Bezel Finish: Tritium Illumination Type: Tritium Package Contents: Armourlite Mountaineer Swiss Tritium Illuminated Watch Armourlite Mountaineer Swiss Tritium Illuminated Watch - AL116