---
product_id: 47919597
title: "GW-7900B-1ER"
brand: "casio"
price: "Rp8246019"
currency: IDR
in_stock: true
reviews_count: 8
category: "Casio"
url: https://www.desertcart.id/products/47919597-gw-7900b-1er
store_origin: ID
region: Indonesia
---

# Solar powered for endless energy World time across 48 cities Water resistant up to 200m GW-7900B-1ER

**Brand:** casio
**Price:** Rp8246019
**Availability:** ✅ In Stock

## Summary

> ⚡ Own the moment with unstoppable, stylish precision.

## Quick Answers

- **What is this?** GW-7900B-1ER by casio
- **How much does it cost?** Rp8246019 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/47919597-gw-7900b-1er)

## 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

- • **Unstoppable Power:** Tough Solar technology keeps you charged without battery worries.
- • **Precision on Point:** Atomic timekeeping ensures second-perfect accuracy every day.
- • **Sleek Rugged Style:** Matte black resin strap with a chunky yet comfortable fit—command attention effortlessly.
- • **Global Time Mastery:** Instantly switch between 48 international time zones—never miss a beat.
- • **Built to Brave the Elements:** Shock resistant and water resistant to 20 bar—ready for any adventure.

## Overview

The Casio GW-7900B-1ER is a solar-powered, shock-resistant digital watch featuring atomic timekeeping and world time functions across 48 cities. With a durable mineral glass face and water resistance up to 200 meters, it combines rugged reliability with sleek matte black styling, perfect for professionals who demand accuracy and style in any environment.

## Description

Durable G-Shock watch with shock resistance, world time, solar power, and 20 bar water resistance. Designed for high functionality and comfort in harsh conditions.

Review: Great fitting, large G-Shock with a soft matte resin strap. - This is by far one of the nicest G-Shocks that I have come across. The face is chunky, depth wise, and so might not get along with a tight fitting cuff. But because this is a solar charged watch I tend to let it sit outside the cuff and Its usually worn in casual clothing anyway. I find this watch to be very cool looking and stylish, even though is designed to target the Rescue service market. It doesn't look out of place in any situation other than when wearing a suit. It's also worth noting that I have a very small wrist and I found the new mudman too big for me and it just didn't 'hug' my wrist like this model does. And because the strap is soft and matte it makes it even better and there isn't lots of excess strap sticking out which I find with most G-Shock. It's also I very light! I kinda wanted a bit of weight to this but it's so light. You can be guaranteed of very accurate timekeeping too due to this watche being atomic, meaning that it updates the time every day making it accurate right down to the seconds. Of several negative displays I have come across in the G-Shock range this one is the easiest to read but I do find myself using the light often enough. In terms of functions this watch has all you need and more for the average guy and it all works very well. My only complaint is that this watch has frozen on me twice and I've only had it a month. If this happens to you, you can press three buttons at once to reset it. I think it's the two buttons on the left and one of the buttons on the right. This works for a lot of G-Shocks if they freeze or act up on you. Overall this is a nice fitting stylish and functional rugged watch and I'd recommend it to people in the services (if the thickness of the watch won't be an issue) and to G-Shock fans/collectors who like a stylish G! (Eminem wears this G! Which will help sales!) I'm not a very good reviewer but I hope this helps answer some questions buyers may have.
Review: Amazing work watch but style comes with a big price premium. - There are so many reviews online of this watch that the spec hardly bears repeating but what do I think? Classic G-Shock case design though slightly oversized to make it appear bulletproof. Makes it hard to slide slim or tailored cuffs over it due to the increased height. Despite the size it doesn't actually look too big on the wrist and is very comfortable due to the additional 'wings' covering where the strap meets the case. Multiband 6, Tough Solar and the usual G-Shock features mean it is a watch that is truly accurate and should need virtually no maintenance. Looks fabulous in the black with the negative LCD. After reading the reviews I was actually surprised how easy it was to read. I can see it isn't for everyone but combined with the automatic backlight I have never had a single issue reading the display. Due to the darker display it is perhaps slightly more affected by reflections but with the right light the digits really stand out just like the photos. The only disadvantage worth noting is that you pay a big price premium over the standard watch to have the black version. It was a style choice for me in the end and I am glad I made it but it is hard to justify the extra money for any other reason. I assume it is so much more because this model isn't a UK official watch (it doesn't appear in the Casio UK website) but rather one destined for other markets.

## Features

- Shock resistant
- World time function
- Mineral glass
- Solar powered
- Water resistant to 20 bar

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0039YOIH0 |
| Age range | Adult |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Batteries included? | Yes |
| Best Sellers Rank | 329,997 in Fashion ( See Top 100 in Fashion ) 2,316 in Men's Wrist Watches |
| Brand | Casio |
| Color | Black/Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,875) |
| Date First Available | 23 Sept. 2010 |
| Department | Men's |
| Display type | Digital |
| Features | Radio Controlled, Stop Watch, Tide, World Time |
| Included components | 1 item |
| Is discontinued by manufacturer | No |
| Item display width | 50 millimetres |
| Item model number | GW-7900B-1ER |
| Manufacturer | CASIO |
| Number of items | 1 |
| Power source | Automatic,Solar Energy |
| Product Dimensions | 11 x 11 x 8 cm; 71 g |
| Seasons | Year-round |
| Shape | Round |
| Size | 52,4MM |
| Sport | Other Sports |
| Style | Bracelet |
| Usage | Fitness |
| Weight | 71 g |

## Images

![GW-7900B-1ER - Image 1](https://m.media-amazon.com/images/I/71VtsZ64fGL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: does this item have a positive display**
A: If you mean is the display easy to read? The back ground is black and the digits are grey. It is not the easiest of watch's to see in daylight how ever I got it because it illuminates and I use it a night. It is solar charged, doesn't require battery's . It is 100. % acurate  as it picks up radio signal and resets itself in early hours of the morning. It's a good watch.

**Q: Is this original item, how many functions it has?**
A: Yes original. All the usual digital watch functions such as stop watch. world time etc. Shows moon phases and tide information. The watch is solar powered and radio controlled by the atomic clock

**Q: How do i set the hourly beep on g-shock 7900b 1er**
A: Scroll through the alarm settings. It's one of them. 6 taps in the alarm mode(SIG) 👍🏻

**Q: How much power when it arrives? Does the seller maintain safe-power levels?**
A: Casio watches come in an opaque tin. Without light they enter a power saving mode to preserve charge. Once they are exposed to light again they function normally but you need to maintain the charge. I leave mine by a window when not in use. Depending on when it left the factory the watch should have at least a medium power level. I'm sure that retailers don't open the tins to charge them though, so it's possible the watch would need charging, but not probable.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great fitting, large G-Shock with a soft matte resin strap.
*by P***Y on 8 January 2013*

This is by far one of the nicest G-Shocks that I have come across. The face is chunky, depth wise, and so might not get along with a tight fitting cuff. But because this is a solar charged watch I tend to let it sit outside the cuff and Its usually worn in casual clothing anyway. I find this watch to be very cool looking and stylish, even though is designed to target the Rescue service market. It doesn't look out of place in any situation other than when wearing a suit. It's also worth noting that I have a very small wrist and I found the new mudman too big for me and it just didn't 'hug' my wrist like this model does. And because the strap is soft and matte it makes it even better and there isn't lots of excess strap sticking out which I find with most G-Shock. It's also I very light! I kinda wanted a bit of weight to this but it's so light. You can be guaranteed of very accurate timekeeping too due to this watche being atomic, meaning that it updates the time every day making it accurate right down to the seconds. Of several negative displays I have come across in the G-Shock range this one is the easiest to read but I do find myself using the light often enough. In terms of functions this watch has all you need and more for the average guy and it all works very well. My only complaint is that this watch has frozen on me twice and I've only had it a month. If this happens to you, you can press three buttons at once to reset it. I think it's the two buttons on the left and one of the buttons on the right. This works for a lot of G-Shocks if they freeze or act up on you. Overall this is a nice fitting stylish and functional rugged watch and I'd recommend it to people in the services (if the thickness of the watch won't be an issue) and to G-Shock fans/collectors who like a stylish G! (Eminem wears this G! Which will help sales!) I'm not a very good reviewer but I hope this helps answer some questions buyers may have.

### ⭐⭐⭐⭐⭐ Amazing work watch but style comes with a big price premium.
*by I***H on 22 March 2014*

There are so many reviews online of this watch that the spec hardly bears repeating but what do I think? Classic G-Shock case design though slightly oversized to make it appear bulletproof. Makes it hard to slide slim or tailored cuffs over it due to the increased height. Despite the size it doesn't actually look too big on the wrist and is very comfortable due to the additional 'wings' covering where the strap meets the case. Multiband 6, Tough Solar and the usual G-Shock features mean it is a watch that is truly accurate and should need virtually no maintenance. Looks fabulous in the black with the negative LCD. After reading the reviews I was actually surprised how easy it was to read. I can see it isn't for everyone but combined with the automatic backlight I have never had a single issue reading the display. Due to the darker display it is perhaps slightly more affected by reflections but with the right light the digits really stand out just like the photos. The only disadvantage worth noting is that you pay a big price premium over the standard watch to have the black version. It was a style choice for me in the end and I am glad I made it but it is hard to justify the extra money for any other reason. I assume it is so much more because this model isn't a UK official watch (it doesn't appear in the Casio UK website) but rather one destined for other markets.

### ⭐⭐⭐⭐⭐ Sturdy and reliable!
*by G***E on 29 December 2016*

I bought this particular model because it shows the phases of the Moon and the state of tidal flow. I find this handy as I live on the shore of a sea loch and own a small boat. The Moon phase is set automatically and is linked to your chosen city while the local tide times can be set manually. It is also waterproof. My other main reasons for purchase were that the time setting is radio controlled and the watch is solar powered. The first more or less guarantees accuracy whilst the second saves bothering about changing batteries. It has a number of other functions, such as alarm and stopwatch, but I will probably not use them. They are also handy to have, however, as available options. My use will tend to be local, but World Travellers can easily adjust the watch to suit their travels. The main display is digital with a neat calendar. I understand some have difficulty reading the display, but I don't. It would be hard to describe it as a dress watch. It is large and chunky on the wrist, but the strap fit is really comfortable. I bought it as it is specifically designed to be unaffected by knocks and shocks normally experienced in active outdoor pursuits and, for this purpose, I think it not only looks the part, but actually is the part.

## Frequently Bought Together

- GW-7900B-1ER
- Casio Men's Digital Quartz Watch with Plastic Strap GW-M5610U-1ER
- Casio Gents 43.00mm Solar Watch with Black Digital dial and Black Plastic/Resin Strap Strap GW-M5610U-1BER

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.id/products/47919597-gw-7900b-1er](https://www.desertcart.id/products/47919597-gw-7900b-1er)

---

*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-02-13*