Casio G7900-1 G-Shock Watch Review


Casio is a renowned manufacturer of military and tactical watches, its success in this field being almost exclusively owed to its G-Shock line. One of the most popular models is Casio G7900-1 G-Shock watch, a timepiece that stays true to the brand thanks to its sporty design and dynamic characteristics.

This particular timepiece is part of an older collection. Nevertheless, it boasts a contemporary look and it can still compete with the most advanced tactical watches on the market.

Because this watch still enjoys huge popularity, we decided to test it and this is our unbiased Casio G7900-1 G-Shock watch review.

Casio Men's G7900-1 G-Shock Rescue Digital Sport Black Resin Watch
  • Round sport watch featuring four-point design protection, large buttons and display format, as well as tide and moon-phase data
  • 50 mm resin case with mineral dial window
  • Digital display

Last update on 2019-08-24 / Images from Amazon Product Advertising API


Casio manufactured a wide range of G-Shock timepieces, the linking factor between all of them being, without a doubt, the sturdy yet masculine design.

The G7900-1 maintains the characteristic line of the G-Shock watches, presenting itself as an imposing timepiece designed to be noticed.

The case and wristband are made of resin, while the round digital dial is simple and intuitive. Compared to the other G-Shock watches, the Rescue model displays not only the current time, date and day of the week but also the phase of the moon and the tide of the sea, two incredibly useful tactic elements.

The choice of the colors is truly inspired. The wristband and the case are black, while the dial’s display uses light colors for the background and a dark gray for the figures to ensure easy reading of the time. A touch of style is added by the red elements such as a button and the writing on the case.

The final touch is given by the extremely resistant mineral crystal window that protects the display.

Characteristics and Functionalities

This Casio G7900-1 G-Shock watch for men has many military and tactic functions that can be successfully used not only by the military professionals but also by all adventurers.


Common to many G-Shock watches, this feature allows users to turn on the backlight of the watch with a simple twist of the wrist. Many may argue that this is an unimportant feature, but the truth is that it is always handy to turn on the light of your watch and read the time without having to press any button.

To maintain a low energy consumption, the auto-illuminator activates itself only in low-light or no-light conditions and it features the afterglow.

World Time

Another useful feature specially designed for military professionals but also for the active travelers is the world time, a characteristic that allows checking the time in 29 different time zones and 48 cities worldwide.

5 Daily Alarms

The daily alarms signal the events that repeat every day by emitting an acoustic signal at the pre-chosen moment.

Casio G7900-1 G-Shock watch is equipped with five independent alarms, four of which are multi-function alarms designed to be used for specific events while the last one is a regular snooze alarm typically used to wake up.

In addition to the alarms, the watch uses acoustic signals with other functions too, such as the countdown timer or the stopwatch.

Flash Alert

Any time an alarm sets off, a visual flash alert is also triggered to notify you of the event. The flash alert can also be used as an hourly signal together with the acoustic alert or together with the countdown beeper to signal the passing of time.

Additional Features

The top Casio G7900-1 G-Shock watch presents a multitude of other useful features. To begin with, we have to mention the resistance and durability of the model, that is water resistant at 660 feet, shock resistant and also resistant to extreme temperatures.

To make this watch even more reliable compared to the other G-Shock models, the manufacturer added to the design four-point protection and enlarged the buttons and the display format for easier operation.

Among the other features, we can mention the pre-programmed calendar, various time-measuring modes and the 12/24 hour format.

In our opinion, the only thing G7900-1 model is missing is the ABC function.

Things We Like
Battery level indicator
Solar recharging battery
Luminous and easy to see the display
Tide and moon-phase indicator
Things We Don’t Like
Lack of ABC function

User’s Opinion

Many users refer to this model as the “best Casio G7900-1 G-Shock watch”, claiming that it is the best watch they have ever owned.

Without a doubt, the most appreciated characteristic is the tide and moon phase indicator, a unique feature that is missing from almost all the other tactical watches available on the market. Another appreciated characteristic is the durability and reliability of the watch, ensured by the heavy-duty materials used in the manufacturing process.

Regarding the dimensions, some users confessed that this is a rather big watch, the G7900-1 measuring 47 mm. Nevertheless, the watch impresses with its strong masculine design and it is considered an awesome accessory by many. The weight is also reported as being just perfect.

The watch has really few negative feedback, the majority of the less satisfied users complaining about really minor flaws, such a poorly written instructions manual. On the other hand, just like with any other product, it is impossible to satisfy all tastes and needs with a single product.

Casio Men's G7900-1 G-Shock Rescue Digital Sport Black Resin Watch
  • Round sport watch featuring four-point design protection, large buttons and display format, as well as tide and moon-phase data
  • 50 mm resin case with mineral dial window
  • Digital display

Last update on 2019-08-24 / Images from Amazon Product Advertising API

Check out our all time favourite Top 5 Military Watches.

Final Thoughts


Casio G7900-1 impressed us. Casio truly is a definition of high-quality, reliability and durability and this watch is absolutely amazing.

We like all its functions, the fact that the case is reinforced with a four-point protection and the large, luminous display that can be easily seen in all circumstances. Furthermore, due to the fact that the model is rather old, finding a Casio G7900-1 G-Shock watch for sale is quite easy.

But the question that arises is, could Casio have done better for this model?

Certainly yes! Although it is an excellent watch, it also misses some essential functionalities. Nevertheless, not all users need a compass or altimeter in their adventures, therefore we can say that Casio created a really amazing timepiece that will definitely withstand the test of time.

    About Author

    I get excited about efficient gear that fulfills multiple roles, and I’ve taken my love of hunting, military equipment, and survival tactics to create RLG. There was so much I didn’t know when I got started, and my goal with this site is to pose you for the very best hunt, the best fishing trips, and teach you how to discern good gear from bottom barrel junk. Together, we’re going to gear up and get ready for anything the world throws our way.