For 25 years Casio G-Shock digital watches are the ultimate tough watch. Providing durable, waterproof mens digital watches for every activity. G-Shock is the ultimate tough watch. It was born from a developer"s dream of "creating a watch that never breaks." Guided by a "Triple 10" development concept, the design teams sought a watch with 10-meter free-fall endurance, 10-bar water resistance and a 10-year battery life. Living up to G-Shock"s reputation for big case designs, comes a revolution in case size with the introduction of the X-Large G. Black resin band digital and analog watch with black face. Shock Resistant 200M Water Resistant Anti-Magnetic Structure 1/1000th Second Stopwatch with Speed Indicator Hourly Time Signal Auto-Calendar (pre-programmed until the year 2099) Daily Alarm 4 daily and 1 snooze alarm Module 5081 Approx. Battery Life 2 years Battery CR1220 Countdown Timer Shock Resist Backlight Auto LED light with afterglow 12/24-Hour Formats Accuracy +/- 15 seconds per month Magnetic Resistant World Time 29 times zones (48 cities + UTC) Stopwatch 1/1000 Second