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 color schemes for a cool design that moves with ease from casual settings to work situations. FEATURES Case size (L× W× H): 54.9 × 51.9 × 16.1 mm Weight: 65 g Case and bezel material: Bio-based Carbon / Bio-based resin Band: Bio-based resin band Construction: Shock Resistant Water resistance: 200-meter water resistance Power supply and battery life: Approx. battery life: 10 years on CR2025 Glass: Mineral Glass Compatible band size: 145 to 215 mm World time: Multi Time (4 different cities) Stopwatch: 1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Timer: Countdown timer Measuring unit: 1/10 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Alarm/hourly time signal: 5 alarms (daily or one-time) Light: LED backlight (Super Illuminator) Auto light switch, selectable illumination duration, afterglow Light color: LED:White Calendar: Full auto-calendar (to year 2099) Mute feature: Button operation tone on/off Accuracy: Accuracy: ±15 seconds per month Other features: 12/24-hour format