Enjoy a life of fewer battery changes with a large-case G-SHOCK with a 10-year battery you won’t have to worry about for ages. The digital GD-010 delivers handy features like world time and stopwatch, as well as a high-brightness LED light, which can be easily accessed from the large button on front of the case, ensuring visibility even in the dark.Made with bio-based resin and equipped with a 10-year battery, this G-SHOCK is great if you want to reduce environmental impact. Available in a selection of black-based workstyle colour schemes for a cool design that moves with ease from casual settings to work situations.Basic InformationCase size (L× W× H)54.9 × 51.9 × 16.1 mmWeighticon-question65 gCase and bezel materialBio-based Carbon / Bio-based resinBandBio-based resin bandConstructionShock ResistantCarbon Core Guard structureWater resistance200-meter water resistancePower supply and battery lifeApprox. battery life: 10 years on CR2025World timeMulti Time (4 different cities)World time31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swappingStopwatch1/100-second stopwatchMeasuring capacity: 23:59'59.99''Measuring modes: Elapsed time, split time, 1st-2nd place timesTimerCountdown timerMeasuring unit: 1/10 secondCountdown range: 24 hoursCountdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)Alarm/hourly time signal5 alarms (daily or one-time)Hourly time signalLightLED backlight (Super Illuminator)Auto light switch, selectable illumination duration, afterglowLight colorLED:WhiteCalendarFull auto-calendar (to year 2099)Mute featureButton operation tone on/offAccuracyAccuracy: ±15 seconds per monthOther features12/24-hour formatRegular timekeeping:Hour, minute, second, pm, month, date, day