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 Information Case size (L× W× H)43.7 × 38.4 × 12.2 mm Weight35 g Case and bezel materialResin BandResin Band Water resistance50-meter water resistance Power supply and battery lifeApprox. battery life: 10 years on CR2025 Exterior GlassResin Glass Compatible band size145 to 215 mm Watch Features World time29 time zones (48 cities), daylight saving on/off Stopwatch1/100-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 time TimerMeasuring 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 Alarm/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 start LightLED backlight Selectable illumination duration (1.5 seconds or 3 seconds), afterglow Light colourLED:Amber CalendarFull auto-calendar (to year 2099) Mute featureButton operation tone on/off AccuracyAccuracy: ±30 seconds per month Other features12/24-hour formatRegular timekeeping:Hour, minute, second, pm, date, day