---
product_id: 570654055
title: "Casio G-Shock GWG-B1000-1A4JF Master of G Series MUDMASTER Flagship Model Triple Sensor Japan Import New"
brand: "g-shock"
price: "A$1759"
currency: AUD
in_stock: true
reviews_count: 13
category: "G Shock"
url: https://www.desertcart.com.au/products/570654055-casio-g-shock-gwg-b1000-1a4jf-master-of-g-series
store_origin: AU
region: Australia
---

# Radio-Controlled + Bluetooth: atomic time sync & app connectivity Triple Sensor: compass, altimeter/barometer, thermometer Solar Powered: eco-friendly, never replace batteries Casio G-Shock GWG-B1000-1A4JF Master of G Series MUDMASTER Flagship Model Triple Sensor Japan Import New

**Brand:** g-shock
**Price:** A$1759
**Availability:** ✅ In Stock

## Summary

> ⏱️ Own the wild with precision and style – the ultimate Mudmaster experience!

## Quick Answers

- **What is this?** Casio G-Shock GWG-B1000-1A4JF Master of G Series MUDMASTER Flagship Model Triple Sensor Japan Import New by g-shock
- **How much does it cost?** A$1759 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/570654055-casio-g-shock-gwg-b1000-1a4jf-master-of-g-series)

## 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

- • **Endless Power:** Tough Solar charging means your watch stays alive through every adventure.
- • **Rugged Elegance:** Bold red resin band with rose gold accents and sapphire crystal for standout durability.
- • **Master the Elements:** Triple Sensor tech keeps you oriented and informed in any terrain.
- • **Precision Perfected:** Radio-controlled atomic time sync ensures you’re always on the dot.
- • **Seamless Smart Link:** Bluetooth Mobile Link pairs with your phone for effortless setup and updates.

## Overview

The Casio G-Shock GWG-B1000-1A4JF MUDMASTER is a flagship rugged sport watch designed for professionals who demand durability and advanced functionality. Featuring a triple sensor (compass, altimeter/barometer, thermometer), solar power, radio-controlled atomic timekeeping, and Bluetooth connectivity, it combines cutting-edge tech with a bold red resin band and sapphire crystal face. Water resistant up to 200 meters and crafted with bio-based resin, it’s built to withstand the toughest environments while keeping you impeccably on time.

## Description

The MUDMASTER from G-Shock's Master of G line, was made for comfort and functionality in the toughest environments. It's solar powered, radio-controlled and has a triple sensor (compass, altimeter/barometer, and thermometer). It also has a mobie link through Bluetooth.

Review: Classier Looking Mudmaster! - Recently sold my GWG-2000 which I had for two years and was missing the G-Shock experience so bought this here on desertcart. I'll come right out and admit that the maroon band was what sold me lol. Otherwise this is a solid G-Shock with all the features including sunrise and sunset which my previous watch didn't have. Pros: Red band Rose gold accents All the bells & whistles including Tough Solar, Multi-band 6, and Bluetooth Bluetooth connects to Casio app and makes setting up the watch way easier than doing it manually. Cons: Light is not as bright as GWG-2000 and is at the 4 o'clock position which leaves some of the watch in a slight shadow when used. Metal keeper. Why? NOTE: Casio has fixed the radio sync problem with this model but be aware that if you pair the watch to BT it will attempt to connect to this for time sync overnight and will not connect to the radio signal. To connect to the radio signal just un-sync the watch using the instructions found on the Casio web page and it will sync to the atomic clock overnight. All-in-all a nice watch and visually a step up from previous Mudmasters.
Review: Great quality - Excellent watch. Very modern style

## Features

- Triple Sensor (compass, altimeter/barometer, and thermometer)
- Solar Powered
- Radio- Controlled
- Bluetooth Mobile Link
- Double LED

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CJJ76FFR |
| ASIN  | B0CJJ76FFR |
| Band Color | Red |
| Band Material Type | Resin |
| Band Width | 28.7 Millimeters |
| Bands | 1 |
| Batteries  | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #711,274 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #3,286 in Men's Wrist Watches |
| Brand Name | G-Shock |
| Case Diameter | 52.1 Millimeters |
| Case Material Type | bio-based resin |
| Case Thickness | 16.2 Millimeters |
| Clasp Type | Tang Buckle |
| Closure Type | Buckle |
| Crystal | Sapphire Crystal |
| Customer Reviews | 4.5 4.5 out of 5 stars (70) |
| Date First Available  | October 11, 2023 |
| Department  | mens |
| Dial Color | Black |
| Display | Analog-Digital |
| Embellishment Feature | Crystal |
| Face Style | Analog-Digital with Index markers |
| Global Trade Identification Number | 04549526361890 |
| Item Type Name | Sport Watch |
| Item Weight | 114 Grams |
| Item model number  | GWG-B1000-1A4JF |
| Manufacturer | Casio |
| Manufacturer  | Casio |
| Model Name | GWGB1000-1A4 |
| Model Number | GWG-B1000-1A4JF |
| Package Dimensions  | 4.61 x 3.7 x 3.66 inches; 4.02 ounces |
| Power Source | Solar Powered |
| Series Number | 1000 |
| Sport Type | Walking |
| Strap Type | Two Piece Strap |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Watch Movement Type | Japanese Quartz |
| Water Resistance Depth | 200 Meters |
| Water Resistance Level | Waterproof |

## Images

![Casio G-Shock GWG-B1000-1A4JF Master of G Series MUDMASTER Flagship Model Triple Sensor Japan Import New - Image 1](https://m.media-amazon.com/images/I/71zpaMmlcdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Classier Looking Mudmaster!
*by 4***E on August 3, 2024*

Recently sold my GWG-2000 which I had for two years and was missing the G-Shock experience so bought this here on Amazon. I'll come right out and admit that the maroon band was what sold me lol. Otherwise this is a solid G-Shock with all the features including sunrise and sunset which my previous watch didn't have. Pros: Red band Rose gold accents All the bells & whistles including Tough Solar, Multi-band 6, and Bluetooth Bluetooth connects to Casio app and makes setting up the watch way easier than doing it manually. Cons: Light is not as bright as GWG-2000 and is at the 4 o'clock position which leaves some of the watch in a slight shadow when used. Metal keeper. Why? NOTE: Casio has fixed the radio sync problem with this model but be aware that if you pair the watch to BT it will attempt to connect to this for time sync overnight and will not connect to the radio signal. To connect to the radio signal just un-sync the watch using the instructions found on the Casio web page and it will sync to the atomic clock overnight. All-in-all a nice watch and visually a step up from previous Mudmasters.

### ⭐⭐⭐⭐⭐ Great quality
*by A***M on February 17, 2026*

Excellent watch. Very modern style

### ⭐⭐⭐⭐⭐ Stunning and feature packed.
*by G***Y on January 27, 2026*

Gorgeous watch. I'm typical g-shock fashion the strap is very rigid. I hear them up a little bit to help from it to my wrist. It is large. On my 7-1/4" wrist it's borderline too big but it doesn't feel as big as it is with how the lugs and gap fillers are. It's also pretty thick. Even the strap is a chunker which makes fitment a little weird with one side being tight against your wrist and the other side looser. It would have been nice to be a little thinner or taper somewhat. Be aware that there are import duties shipping to the US. It was somewhere around $150 that the seller doesn't pay so figure that into the price so you can compare to sellers that do pay the import fees as part of their selling price. Mine wasn't as good of a deal as it seemed and actually cost more. Still definitely worth it. You don't need to connect it to your phone to work. It just makes setting easier. You can connect it, set everything up and disconnect if you like. Also, it is required to make gps functions work since this watch does not have it's own GPS. Which all the ads seem to leave out when talking about functionality.

## Frequently Bought Together

- Casio G-Shock GWG-B1000-1A4JF Master of G Series MUDMASTER Flagship Model Triple Sensor Japan Import New
- Casio G-Shock GWG-B1000-3AJF Master of G Series MUDMASTER Flagship Model Triple Sensor Japan Import New

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-01*