CASIO/G-SHOCK G7900-1/G7900-2/G7900-3/G7900A-4 Digital/ Waterproof/ Sports Watch Watches

100% ORIGINAL 1 YEAR WARRANTY Full set New in box BASIC INFORMATION Case size (L× W× H) 52.4 × 50 × 17.7 mm Weight 68.2 g Case and bezel material Case / bezel material: Resin Band Resin Band Construction Shock Resistant Water resistance 200-meter water resistance Environmental resistance Low temperature resistant (-20℃) Power supply and battery life Approx. battery life: 2 years on CR2025 Watch Features World time World time 29 time zones (48 cities), daylight saving on/off Moon data Moon data (moon age of the input data, moon phase graph) Tide graph Tide graph (tide level for specific date and time) Stopwatch 1/100-second stopwatch (ST1) Measuring capacity: 999:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Other: 5-second countdown auto start 1/100-second stopwatch (ST2) Measuring capacity: 999:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Timer Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) Others: Auto-repeat, progress beeper Alarm/hourly time signal Hourly time signal 5 multi-function alarms (with 1 snooze alarm) Flash alert feature Flash alert Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm, countdown timer progress beeper, and stopwatch auto start Light Electro-luminescent backlight Auto light switch, selectable illumination duration (3 seconds or 5 seconds), afterglow Light color EL:Blue Green 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 Regular timekeeping: Hour, minute, second, pm, month, date, day