---
product_id: 662402
title: "Casio Men's G7900-1 G-Shock Rescue Digital Sport Watch"
brand: "casio"
price: "¥26015"
currency: JPY
in_stock: true
reviews_count: 8
category: "Casio"
url: https://www.desertcart.jp/products/662402-casio-mens-g7900-1-g-shock-rescue-digital-sport-watch
store_origin: JP
region: Japan
---

# Tide & moon phase tracking 200m water resistance 4-point shock protection Casio Men's G7900-1 G-Shock Rescue Digital Sport Watch

**Brand:** casio
**Price:** ¥26015
**Availability:** ✅ In Stock

## Summary

> ⏱️ The ultimate rugged companion for those who demand precision and adventure.

## Quick Answers

- **What is this?** Casio Men's G7900-1 G-Shock Rescue Digital Sport Watch by casio
- **How much does it cost?** ¥26015 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/662402-casio-mens-g7900-1-g-shock-rescue-digital-sport-watch)

## Best For

- casio enthusiasts

## Why This Product

- Trusted casio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** Engineered with four-point shock protection and a rugged 50mm resin case to withstand your toughest adventures.
- • **Effortless Visibility:** Auto EL backlight with afterglow and large digital display ensure you never miss a beat, day or night.
- • **Precision Timekeeping:** Japanese quartz movement with world time across 29 time zones, plus 4 alarms and stopwatch for ultimate control.
- • **Unstoppable Performance:** Water resistant up to 200 meters, perfect for serious surface water sports and professional marine activities.
- • **Stay in Sync with Nature:** Integrated tide graph and moon phase data keep you connected to the rhythms of the ocean and night sky.

## Overview

The Casio Men's G7900-1 G-Shock Rescue Digital Sport Watch combines robust four-point shock resistance with advanced tide and moon phase tracking, housed in a durable 50mm resin case. Featuring a large, easy-to-read digital display with auto EL backlight, it offers water resistance up to 200 meters, making it ideal for marine activities and surface water sports. Powered by reliable Japanese quartz movement, it includes world time, multiple alarms, stopwatch, and countdown timer functions, designed for professionals and outdoor enthusiasts who value durability and precision.

## Description

Shock resistant, moon and tide graphs, low temp LCDAuto EL backlight, flash alert, world time, daily alarmChronograph, 12/24 hr formatsWater resistant up to 660 feet (200 M) Specifications: New Four Point Design Protection, Large Buttons & Display Format, Tide & Moon Data, 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), 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 CasioWith the launch of its first watch in November 1974, Casio entered the wristwatch market at a time when the watch industry had just discovered digital technology. As a company with cutting-edge electronic technology developed for pocket calculators, Casio entered this field confident that it could develop timepieces that would lead the market.Today, Casio is focusing its efforts on solar-powered radio-controlled watches: the built-in solar battery eliminates the nuisance of replacing batteries, atomic timekeeping means the users never have to reset the time. Recently, Casio launched a series of Bluetooth watches that sync to the users cell phone to automatically update the time. Casio is always moving time forward.

Review: another fine watch from Casio - G-shock lovers will not be disappointed with this one. To set the record straight this watch is no bigger than any other G-Shock I have owned before....it's exactly the same size as my old 1289 and it does ride easy on your wrist with the unseen "wings" on each band end, as stated by another reviewer. The moon phase calibrates itself to your home sight data. The tides need to be figured out if you choose to do so. LOL when I saw the manual...it looked like one of those miniature bibles as it's in 5 languages. Before I settled on this model I actually got tired of looking at all the G-shocks available on desertcart. I just wanted a watch like my 1289, no frills, no fancy. This is exactly what I wanted and more as I like to be aware of what lunar phase I'm in. Solid construction, metal band fastener, easy to read, good illumination and G-Shock durability makes me very happy with this purchase. Update #1 > already gone up $20 since I ordered. Never far from the manual I am becoming more adept at using the features that I never bothered with before, like the stopwatch and timer. Now I find myself timing lots of stuff just to use it, and it is very easy the more you do it. Although I have no need for the tide feature I am trying to relate it to moon rise and set as I am an avid fisherman, so I am closely monitoring the relationship of the graph to peak feeding times. Hopefully I'll be able to make a correlation between the 2. BTW, the hardest part of the tide set up for me was determining my Lunitidal interval, mainly because I am in the upper midwest. There are literally hundreds of different high tide times but not many in CST, so I started with one from the Texas Gulf. Like I said, I'm just trying to make a connection between the tide graph on the dial and moon up, overhead and down. Still love this watch and glad I got it.
Review: Great G-shock! - I have been wearing (and beating up) this watch for nearly a year. I love the other G-shocks that I have owned over the years; this one is as good as any of them. It hardly looks worn at all, even though I seldom ever remove it . . . swimming (ocean, too), showering, working, it stays on my wrist 24/7. The buttons are easier to press than my older, original G-shocks from the '80s. The high/low tide function is very useful while on vacation in Del Mar, CA to know how much beach we will have to set-up on at any given point during the day. I really do not know how to use the moon-phase function, but I find myself checking for a full moon when somebody does something stupid. The watch display is easy to read, even for my old eyes. The back light is bright and stays on long enough and makes the display very readable at night. I often use the light function to help me navigate to the bathroom in the middle of the night without waking my wife. The alarms are noticeable but not obnoxious. The band is very comfortable and really well made. The band has little 'flaps' that kind of raise the back of the watch and lift it from your wrist. This helps minimize sweating under the watch during workouts or on hot days. The watch is big, but I really do not even know I have it on. Very comfortable. This thing looks like it will last forever. But if it did ever fail, I would not hesitate to buy another one, same model, if I could find one.

## Features

- 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
- Japanese quartz movement with digital display
- Resin band with buckle closure
- Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B00284ADDU |
| Batteries  | 1 CR123A batteries required. (included) |
| Best Sellers Rank | #449,491 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #2,002 in Men's Wrist Watches |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,573) |
| Date First Available  | September 11, 2009 |
| Department  | mens |
| Is Discontinued By Manufacturer  | No |
| Item model number  | G-7900-1DR |
| Manufacturer  | Casio |
| Product Dimensions  | 1 x 1 x 1 inches; 2.41 ounces |

## Images

![Casio Men's G7900-1 G-Shock Rescue Digital Sport Watch - Image 1](https://m.media-amazon.com/images/I/61C5cX61NKL.jpg)
![Casio Men's G7900-1 G-Shock Rescue Digital Sport Watch - Image 2](https://m.media-amazon.com/images/I/610jPM6WHsL.jpg)

## Questions & Answers

**Q: Can I set the light time duration?**
A: No. And if you press any other button, the light turns off. Makes it difficult to set an alarm in the dark, so it's really just for checking the time.

**Q: Is it stainless steel or plastic**
A: It's of the highest quality plastic/Rubber with stainless steel back cover.

**Q: does this watch have dual time zones?**
A: Yes, It has dual time zones.

**Q: does it have a barometer**
A: No

## Customer Reviews

### ⭐⭐⭐⭐⭐ another fine watch from Casio
*by S***D on February 24, 2012*

G-shock lovers will not be disappointed with this one. To set the record straight this watch is no bigger than any other G-Shock I have owned before....it's exactly the same size as my old 1289 and it does ride easy on your wrist with the unseen "wings" on each band end, as stated by another reviewer. The moon phase calibrates itself to your home sight data. The tides need to be figured out if you choose to do so. LOL when I saw the manual...it looked like one of those miniature bibles as it's in 5 languages. Before I settled on this model I actually got tired of looking at all the G-shocks available on Amazon. I just wanted a watch like my 1289, no frills, no fancy. This is exactly what I wanted and more as I like to be aware of what lunar phase I'm in. Solid construction, metal band fastener, easy to read, good illumination and G-Shock durability makes me very happy with this purchase. Update #1 > already gone up $20 since I ordered. Never far from the manual I am becoming more adept at using the features that I never bothered with before, like the stopwatch and timer. Now I find myself timing lots of stuff just to use it, and it is very easy the more you do it. Although I have no need for the tide feature I am trying to relate it to moon rise and set as I am an avid fisherman, so I am closely monitoring the relationship of the graph to peak feeding times. Hopefully I'll be able to make a correlation between the 2. BTW, the hardest part of the tide set up for me was determining my Lunitidal interval, mainly because I am in the upper midwest. There are literally hundreds of different high tide times but not many in CST, so I started with one from the Texas Gulf. Like I said, I'm just trying to make a connection between the tide graph on the dial and moon up, overhead and down. Still love this watch and glad I got it.

### ⭐⭐⭐⭐⭐ Great G-shock!
*by P***G on February 29, 2016*

I have been wearing (and beating up) this watch for nearly a year. I love the other G-shocks that I have owned over the years; this one is as good as any of them. It hardly looks worn at all, even though I seldom ever remove it . . . swimming (ocean, too), showering, working, it stays on my wrist 24/7. The buttons are easier to press than my older, original G-shocks from the '80s. The high/low tide function is very useful while on vacation in Del Mar, CA to know how much beach we will have to set-up on at any given point during the day. I really do not know how to use the moon-phase function, but I find myself checking for a full moon when somebody does something stupid. The watch display is easy to read, even for my old eyes. The back light is bright and stays on long enough and makes the display very readable at night. I often use the light function to help me navigate to the bathroom in the middle of the night without waking my wife. The alarms are noticeable but not obnoxious. The band is very comfortable and really well made. The band has little 'flaps' that kind of raise the back of the watch and lift it from your wrist. This helps minimize sweating under the watch during workouts or on hot days. The watch is big, but I really do not even know I have it on. Very comfortable. This thing looks like it will last forever. But if it did ever fail, I would not hesitate to buy another one, same model, if I could find one.

### ⭐⭐⭐⭐⭐ Another great G-Shock!
*by D***A on October 2, 2009*

This is my third G-Shock watch in the last 25 years. My first lasted over 15 years; my second (DW-6900), sadly, was lost on a recent trip to Canada. I almost got an exact replacement, but it occurred to me that this was an opportunity to upgrade to a G-Shock with more features, so I started looking at the new line. I considered the upgraded version of my old watch, dubbed the GW-6900, but it was a 4-6 week wait time thru Amazon, and I didn't want to be without a G-Shock on my wrist for that long :) I settled on the G-7900 as it had an interesting display layout -- not quite as symmetrical as the DW/GW-6900, but very readable -- important since I am now in my mid-40's, and I can't always locate my reading glasses! No atomic timekeeping or solar recharging, as on the GW-6900, but I realized that at this point, I don't really need those features. The G-7900 has a nice, beefy feel to it, and though I was a little dubious about the rubber "wings" attached to the strap, they actually make the watch more comfortable to wear by keeping it from moving around on my wrist. I also much prefer the G-7900's chunky rubberized buttons over the smaller round metallic buttons on my old watch. Another great feature of this watch is the ability to move forward and backward while setting time, alarms, etc. - my old watch would only allow forward movement through the settings, so if you missed the mark, you'd have to go all the way around to it again - seemingly a minor thing, but I did find it rather aggravating. The G-7900's moon phase feature is cool, but since I live in northern Texas, I doubt the tide feature will get used much :) About the only thing I can think of that could be considered a minus would be the backlighting; it's not as bright as the backlighting on my old watch. I will say, though, that the watch is readable in all but the lowest light, and in very dim settings, the backlight is quite adequate to illuminate the display. Maybe Casio implemented this dimmer lighting to save battery life? Overall, I have to say that I LOVE my new watch. If you're a G-Shock fan, I would suggest that you take a look at the G-7900; if you're not currently a G-Shock fan, check one out -- you, too, might find something new to love.

## Frequently Bought Together

- Casio Men Digital Japanese Quartz Watch with Resin Strap G7900-1
- Casio Women's LQ139A-7B3 Classic Analog Watch, White, LQ-139A-7B3

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-20*