---
product_id: 49615641
title: "Casio Men's GW7900B Classic Solar Atomic G-Shock Watch"
brand: "g-shock"
price: "R$2381"
currency: BRL
in_stock: false
reviews_count: 8
category: "G Shock"
url: https://www.desertcart.com.br/products/49615641-casio-mens-gw7900b-classic-solar-atomic-g-shock-watch
store_origin: BR
region: Brazil
---

# Atomic timekeeping, ultra-precise worldwide 200m water resistance, marine-ready Solar-powered, no battery hassle Casio Men's GW7900B Classic Solar Atomic G-Shock Watch

**Brand:** g-shock
**Price:** R$2381
**Availability:** ❌ Out of Stock

## Summary

> ⏱️ Time Never Looked This Tough — Own the Moment with G-SHOCK

## Quick Answers

- **What is this?** Casio Men's GW7900B Classic Solar Atomic G-Shock Watch by g-shock
- **How much does it cost?** R$2381 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/49615641-casio-mens-gw7900b-classic-solar-atomic-g-shock-watch)

## Best For

- g-shock enthusiasts

## Why This Product

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

## Key Features

- • **Stealth Black Statement:** Bold 50mm resin case with a sleek negative display—command attention in any room or wave.
- • **Unstoppable Solar Power:** Harness the sun for endless energy—ditch battery worries forever.
- • **Iconic G-SHOCK Durability:** Built to survive centrifugal forces, impacts, and high pressure—wear what legends trust.
- • **Atomic Precision Worldwide:** Stay synced to atomic clocks across 48 cities—never miss a beat.
- • **Rugged 200m Water Resistance:** Dive into serious surface water sports with confidence and style.

## Overview

The Casio Men's GW7900B Classic Solar Atomic G-Shock Watch combines cutting-edge solar power with atomic timekeeping for unmatched accuracy across 48 cities. Its rugged 50mm resin case and 200m water resistance make it perfect for professional marine activities and serious water sports. Trusted by military, law enforcement, and style icons alike, this watch delivers legendary durability and a stealthy black design that stands out in any crowd.

## Description

Born from a dream of "creating a watch that never breaks." It was over 30 years ago, a CASIO engineer won the battle against the laws of nature. He designed a watch that would resist centrifugal and impact forces, as well as high water pressure. Since then, the name G-SHOCK has become a byword for independence and pushing the limits. G-SHOCK watches are the most durable digital and analog-digital watches in the industry, trusted by military personnel, law enforcement, surfers and outdoor enthusiasts around the world. Along with this, G-SHOCK is highly touted in the fashion world, worn by icons in hip-hop, sports, and design. With limited edition collaborations being released often, you can always find a G-SHOCK that matches your personality and style.

Review: Watch - Very good
Review: Good, but not great... - This watch looks great - it's 'stealth' black look is mean, and a real fashion statement. As is the size. A 50mm width, and 15mm height ensures it will be noticed. However, the display is a double edged sword. The negative display keeps within the stealth mode, BUT it is impossible to read in low light conditions without the aid of the EL light. By low light, I mean indoors under domestic conditions (not bright office light), or outdoor in winter. Sunshine really pops the display into life. The functionality is superb, the atomic function ensures 'to the second' accuracy, and being solar means the watch will remain intact without costly battery replacements, and new gaskets to retain it's waterproof qualities. The resin strap is of good quality, and is supremely comfortable due in part to the 'wings' at either side of the lugs which hug your wrist. I have had mine for some months now, and have 'modded' it slightly by replacing the chrome buckle with a black one, removing the white writing around the bezel, and replacing the silver bezel rivets with black ones, and painting the 'G' on the light button black, all just to highlight the stealthiness of the design. I do love it, and it is almost a great watch, apart from the fact that you can't tell the time in poor light!!

## Features

- Solar-powered sport watch featuring atomic time keeping, world time in 48 cities, and EL backlight
- Features 1/100-second stopwatch, daily alarm with snooze, 12- and 24-hour formats, tide/moon graph, 31 time zones, and day/date/month calendars
- 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 | B00309HQPK |
| Age range | NO |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Batteries included? | Yes |
| Best Sellers Rank | 942,127 in Fashion ( See Top 100 in Fashion ) 6,967 in Men's Wrist Watches |
| Brand | G-Shock |
| Color | Black/Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,302) |
| Date First Available | 21 Oct. 2010 |
| Department | mens |
| Display type | Digital |
| Features | Atomic Timekeeping, Solar Powered, Water Resistant |
| Included components | Casio G-Shock MB-6 GW7900B-1 Atomic Solar Rescue Multi-Band |
| Is discontinued by manufacturer | No |
| Item model number | GW7900B-1 |
| Manufacturer | G-Shock |
| Material type | resin |
| Number of items | 1 |
| Outer material | Resin |
| Power source | Solar Powered |
| Product Dimensions | 10.16 x 5.08 x 5.08 cm; 71 g |
| Shape | Round |
| Size | One Size |
| Sport | water sports, marine activity |
| Style | Solar Atomic Rescue GW7900B |
| Weight | 68 g |

## Images

![Casio Men's GW7900B Classic Solar Atomic G-Shock Watch - Image 1](https://m.media-amazon.com/images/I/612nyor1ebS.jpg)
![Casio Men's GW7900B Classic Solar Atomic G-Shock Watch - Image 2](https://m.media-amazon.com/images/I/71iVmfuZPgL.jpg)

## Questions & Answers

**Q: Does this watch receive a time signal in Asia and Europe**
A: I had one in Afghanistan that did not. However I just set it for Kabul time ( one of the features) and it stayed accurate for a 8 month deployment. Not sure about Europe.

**Q: "Casio Men's GW7900B-1 why is my background grey with black letters ?" and can I change to black background with grey letters I bought it duty free**
A: Hi,The Casio G-Shock  GW-7900B should have on its steel back plate, "GW-7900B" and a box with 3200 (module number).Maybe yours has "GW-7900"  and 3193 instead ?Regards,

**Q: does this have auto El**
A: Yes it has auto EL, it can be set to manual or auto.

**Q: does it has in built battery  even though is solar**
A: Yes it has a battery and yes you have to 'and can easily' replace it. It's about 13 bucks here on Amazon. Bought one yesterday. The one in it lasted for about 6 years.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Watch
*by P***L on 25 July 2023*

Very good

### ⭐⭐⭐⭐ Good, but not great...
*by S***M on 28 November 2011*

This watch looks great - it's 'stealth' black look is mean, and a real fashion statement. As is the size. A 50mm width, and 15mm height ensures it will be noticed. However, the display is a double edged sword. The negative display keeps within the stealth mode, BUT it is impossible to read in low light conditions without the aid of the EL light. By low light, I mean indoors under domestic conditions (not bright office light), or outdoor in winter. Sunshine really pops the display into life. The functionality is superb, the atomic function ensures 'to the second' accuracy, and being solar means the watch will remain intact without costly battery replacements, and new gaskets to retain it's waterproof qualities. The resin strap is of good quality, and is supremely comfortable due in part to the 'wings' at either side of the lugs which hug your wrist. I have had mine for some months now, and have 'modded' it slightly by replacing the chrome buckle with a black one, removing the white writing around the bezel, and replacing the silver bezel rivets with black ones, and painting the 'G' on the light button black, all just to highlight the stealthiness of the design. I do love it, and it is almost a great watch, apart from the fact that you can't tell the time in poor light!!

### ⭐⭐⭐⭐ Display is hard to read
*by E***E on 15 October 2022*

I’ve had this for the past few years and it’s great watch in every way except two things are a pain. The negative display looks cool but it’s really hard to read most of the time and you spend more time moving your wrist to catch the right angle to read it, or have to illuminate it. The solar power indicator and hourly time signal are tooooo small to see half the time. Would I recommend buying one? No, get the normal version.

## Frequently Bought Together

- G-Shock Solar Atomic Rescue GW7900B Black/Black One Size
- Casio G-Shock GWM5610-1 Men's Solar Black Resin Sport Watch
- ECEEN Solar Watch Charger, 8 Hours Timing Off with Men, Women & Square 3 Caps, LED UV Light Charge Eco Driver Watches Compatible Casio/Tough/Protrek/Seiko/Citizen/Garmin/Timex/Bering/FANMIS (Black)

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**Shop now:** [https://www.desertcart.com.br/products/49615641-casio-mens-gw7900b-classic-solar-atomic-g-shock-watch](https://www.desertcart.com.br/products/49615641-casio-mens-gw7900b-classic-solar-atomic-g-shock-watch)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-24*