About G-7900 in Short. Massive G-Shock-s for those with large hands. Four bezel screws and stepped strap inserts create a powerful effect on the case. The digital display is divided into sections – each function has its own zone. The dial and module are designed for trouble-free operation in severe frost conditions – down to -20 ° C. For beginner sailors and fishermen, the watch provides a display of data on the phases of the moon and a tide / tide sensor. Two separate stopwatches [1000 hours each] allow different time periods to be counted simultaneously and the yacht timer function will beep every minute during the regatta. An advanced alarm clock with the ability to configure 5 signals will not let you miss several important events at once. Finding out the time at night is not a problem – fluorescent illumination does an excellent job of illuminating the dial.
Famous people wearing G-Shock G-7900!
Have you seen this watch with another person? Let us know!
| Price | $75 *average Amazon Price, we may earn commission from purchases |
| Year of first Release | 2009 |
| Suitable for Wrist Size | 150 – 230 mm |
| Battery Type | CR2025 (Casio Batteries) |
| Module Number | 3194 |
| Model Range | STANDART DIGITAL |
Feedback from Users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc.
PROs
+ tide chart
+ moon Phase
+ decent size screen
+ great dial illumination
+ gray tabs under the case
+ unbreakable ruggedness
CONs
– a bit too big (for small wrist)
– a lot of tiny crevasses ( makes cleaning it a bit difficult)
G-7900 Model Range *may be updated
*Want to be the first to know about new G-Shock Updates? Here we store all recent Monthly G-Shock Updates →
The most distinctive specs of G-7900 *Editorial
— 200-meter water resistance (good for swimming but not for deep diving)
— Flash alert (Flashes with buzzer that sounds for alarms, hourly time signals)
— Low temperature resistant (stable operation of the watch is guaranteed even at a temperature of -20°C)
— Moon data (moon age of the specific date)
— Tide graph (tide level for specific date and time)
Other G-Shock G Watches *similar by price and functions but different by cases
These are not all G-Shock G Series. Here is a list of All G-Shock G Watches →
Official Casio Description. From G-SHOCK, the watch that brought unmatched toughness to personal timekeeping, comes a collection of models that deliver a level of protection. These watches are designed and engineered to become partners of people who like their activities rough and rugged.
Casio G-7900 on the wrist!
Official G-7900 Specs / Features *for base version G-7900-1
- Case / bezel material: Resin
- Resin Band
- Shock Resistant
- Mineral Glass
- 200-meter water resistance
- Electro-luminescent backlight
Auto light switch, selectable illumination duration (3 seconds or 5 seconds), 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 - Low temperature resistant (-20°C)
- World time
29 time zones (48 cities), daylight saving on/off - Moon data (moon age of the input data, moon phase graph)
- Tide graph (tide level for specific date and time)
- 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 - 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 - 5 multi-function alarms (with 1 snooze alarm)
- Hourly time signal
- Full auto-calendar (to year 2099)
- 12/24-hour format
- Button operation tone on/off
- Regular timekeeping: Hour, minute, second, pm, month, date, day
- Accuracy: ±15 seconds per month
- Approx. battery life: 2 years on CR2025
- Size of case : 52.4×50×17.7mm
- Total weight : 68.2g
Recent News about G-7900
You ask, we answer…
The watch is good for swimming but not for deep diving.
2 years CR2025.
Yes, it has 5 multi-function alarms (with 1 snooze alarm).
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