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.Basic InformationCase size (L× W× H)43.7 × 38.4 × 12.2 mmWeight35 gCase and bezel materialResinBandResin BandWater resistance50-meter water resistancePower supply and battery lifeApprox. battery life: 3 years on CR1616ExteriorGlassResin GlassCompatible band size145 to 215 mmWatch FeaturesWorld time29 time zones (48 cities), daylight saving on/offStopwatch1/100-second stopwatchMeasuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split timeTimerMeasuring 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 alarmAlarm/hourly time signalHourly time signal3 multi-function alarms (with 1 snooze alarm)Flash alertFlashes with buzzer that sounds for alarms, hourly time signal, countdown timer progress beeper, and stopwatch auto startLightLED backlight Selectable illumination duration (1.5 seconds or 3 seconds), afterglowLight colourLED:AmberCalendarFull auto-calendar (to year 2099)Mute featureButton operation tone on/offAccuracyAccuracy: ±30 seconds per monthOther features12/24-hour formatRegular timekeeping:Hour, minute, second, pm, date, day