Slip on a simple, yet practical digital watch with a boldly angular design. With large LCD for outstanding visibility, LED backlight for an easy read, and a 10-year battery that keeps you going for years, this watch is also packed with handy functions like world time, stopwatch, alarm, timer, full-auto calendar, and more. Case / bezel material: Resin Resin Band Resin Glass 50-meter water resistance LED backlight Selectable illumination duration (1.5 seconds or 3 seconds), afterglow LED:Amber World time 29 time zones (48 cities), daylight saving on/off 1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Other: 5-second countdown auto start Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Others: Auto-repeat, progress beeper on/off, time up alarm Hourly time signal 3 multi-function alarms (with 1 snooze alarm) Flash alert Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer progress beeper, and stopwatch auto start Full auto-calendar (to year 2099) 12/24-hour format Regular timekeeping: Hour, minute, second, am/pm, month, date, day Accuracy: ±30 seconds per month Approx. battery life: 10 years on CR2032 Size of case : 43.7 × 38.4 × 12.2 mm Total weight : 35 g