With a wide range of features and an easy to read display, the Casio Tactical XL Digital GD100 offers everything you need in a tactical watch. Featuring an auto LED backlight for dark conditions, this watch is compatible in 31 different time zones, including 48 cities. For superior durability, the frame is water resistant up to 200 meters and shock resistant. This watch features a built-in countdown timer and 1/100 second stopwatch, along with a full calendar and five daily alarms for total functionality and versatility. The watch is powered with a CR2025 battery with a life of 7 years, ensuring you'll have a product that will stick with you for the long haul. Well made and highly practical, this watch redefines timekeeping.