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 color schemes for a cool design that moves with ease from casual settings to work situations. Case / bezel material: Bio-based Carbon / Bio-based resin Bio-based resin band Mineral Glass Neobrite Shock Resistant Carbon Core Guard structure 200-meter water resistance LED light (Super Illuminator) Selectable illumination duration (1.5 seconds or 3 seconds), afterglow LED:White World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping, One-touch UTC Time Zone Access 1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Others: target time alarm, direct timing start from the timekeeping mode Countdown timer Measuring unit: 1/10 second Countdown range: 60 minutes Countdown start time setting range: 1 to 60 minutes (1-minute increments) 5 daily alarms (with 1 snooze alarm) Hourly time signal Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents) Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)) Digital: Hour, minute, second, pm, month, date Accuracy: +/-15 seconds per month Approx. battery life: 10 years on CR2025 Size of case : 55.1 x 51.9 x 17.5 mm Total weight : 67 g