The Casio GA-2300-1ADR G-Shock combines rugged durability with practical timekeeping. Housed in a resin case with a mineral glass front and a resin band, this analog-digital hybrid watch provides 200m water resistance and a host of features including World Time across 31 time zones (48 cities + UTC), a 1/100-second stopwatch, countdown timer, five daily alarms, and an hourly time signal. It also includes a full auto calendar to 2099, a dual LED backlight, and a battery life of about three years with two SR726W batteries. The 45.4 x 42.1 x 11.6 mm case keeps a compact profile while delivering the trusted G-Shock reliability and easy 12/24-hour time formats.