The GA800 series provides three hand analog-digital timekeeping with G-Shock's iconic brand color. Featuring a compact case with thinner design to better fit the wrist, this watch provides easy readability with big, multi-dimensional hour markers. Equipped with super illuminator double LED light, hand shift function, and more to power through your day. Shock resistant 200m water resistant Double LED light LED light for the face (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED back light for the digital display (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) Dual time (Home city time swapping) 1/100-second stopwatch Measuring 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) Memory capacity: Up to 120 records (used by lap time records) Recorded data: Up to 120 records (lap numbers, lap time, measurement start month, day, time, date) Direct timing start from the timekeeping mode Countdown timer Measuring unit: 1 second Countdown range: 100 minutes Countdown start time setting range: 1 second to 100 minutes (1-second increments, 1-minute increments) 5 daily alarms 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: 3 hands (hour, minute (hand moves every 10 seconds), second) Digital: Hour, minute, second, pm, month, date, day Accuracy: ±15 seconds per month Approx. battery life: 3 years on CR2016 module 5535 Size of case / total weight: 54.1x48.6x15.5mm/63g