Details Casio G-Shock Watch GA-810MMA-1ADR is a compact and mid-size model designed for high readability. The overall finish of this model is matte black, which really brings out the brilliance of the face. Its stainless steel front button also contributes to the distinctive look. It also offers 200 meters water resistance and is perfect for beach and swimming activities. Other specs of the watch are Double LED light, mineral glass dial, shock resistant construction, Hand shift feature, 15 seconds deviation per month, 12/24h time format, auto calendar up to 2099, 5 daily alarms, stopwatch, 3 years of battery life and 62g weight. Specs Case / bezel material: Resin Resin Band Neobrite Shock Resistant Mineral Glass 200-meter water resistance 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 Size of case : 54.1×48.6×15.5mm Total weight : 62g