Features: resin case resin band shock resistant mineral glass led backlight (super illuminator) afterglow flash alert multi time (4 different cities) world time 31 time zones (48 cities + coordinated universal time) 1/100-second stopwatch measuring capacity 2359'59.99'' countdown timer 5 independent daily alarms (one-time or daily) hourly time signal full auto-calendar (to year 2099) 12/24-hour format regular timekeeping accuracy +/- 15 seconds per month approx.Battery life 3 years on cr2016 200 meter water resistance size of case/total weight 55.1 x 52.5 x 16.3 mm/69 g