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From G-Shock, the watch that delivers unmatched toughness, comes a collection of new models that deliver a new level of protection. These watches are designed and engineered for rough and rugged activities.
Major features include four large bezel screws and protruding surfaces that divide the bezel & case of watch into four sections for a functional four point protection. The buttons are among some of the largest in the G-Shock line-up for easy operation. Low-temperature resistance allows operation even under very cold conditions, while moon and tide graphs provide essential information for marine professionals & enthusiasts. The large LCD, which is divided into sections, makes information easy to locate and read whenever you need

New Four Point Design Protection
Large Buttons & Display Format
Tide & Moon Data

TECHNICAL SPECS

Shock Resistant
200M Water Resistant
Low Temperature Resistant LCD (-20 C / -4 F)
Auto EL Backlight with Afterglow
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)
Tide Graph (tide level for specific date and time)
Moon Data (moon age of the input data, moon phase graph)
World Time
29 times zones (48 cities), city code display, daylight saving on/off
4 Multi-function Alarms and 1 Snooze Alarm
Hourly Time Signal
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)
Other: Auto-repeat, time-up alarm, progress beeper
1/100 second stopwatch (ST1)
Measuring capacity: 999:59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times
Other: 5-second Auto-start
1/100 second stopwatch (ST2)
Measuring capacity: 999:59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times
Button Operation Tone on/off
Auto Calendar (pre-programmed until the year 2099)
12/24 Hour Formats
Accuracy: +/- 15 seconds per month
Battery: CR2025
Approx. battery life: 2 years
Module 3194
Size of case/total weight
G7900 52.4 x 50.0 x 17.7mm / 68.2g
G7900A 52.4 x 50.0 x 17.7mm / 68.2g