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 analog-digital GA-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)55.1 × 51.9 × 17.5 mmWeight67 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 timeWorld time31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping, One-touch UTC Time Zone AccessStopwatch1/100-second stopwatchMeasuring capacity: 23:59'59.99''Measuring modes: Elapsed time, split time, 1st-2nd place timesOthers: target time alarm, direct timing start from the timekeeping modeTimerCountdown timerMeasuring unit: 1/10 secondCountdown range: 60 minutesCountdown start time setting range: 1 to 60 minutes (1-minute increments)Alarm/hourly time signal5 daily alarms (with 1 snooze alarm)Hourly time signalLightLED light (Super Illuminator)Selectable illumination duration (1.5 seconds or 3 seconds), afterglowLight colourLED:WhiteCalendarFull auto-calendar (to year 2099)Mute featureButton operation tone on/offAccuracyAccuracy: ±15 seconds per monthOther features12/24-hour formatHand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)Regular timekeepingAnalog: 2 hands (hour, minute (hands move every 20 seconds))Digital: Hour, minute, second, pm, month, date, day