--- product_id: 253857004 title: "G-Shock Casio Mudmaster Master of G Watch GGB100" brand: "g-shock" price: "¥245590" currency: JPY in_stock: true reviews_count: 5 url: https://www.desertcart.jp/products/253857004-g-shock-casio-mudmaster-master-of-g-watch-ggb100 store_origin: JP region: Japan --- # Bluetooth Connectivity & Mission Log Quad Sensor: Compass, Altimeter, Barometer, Thermometer Carbon Core Guard Shock Protection G-Shock Casio Mudmaster Master of G Watch GGB100 **Brand:** g-shock **Price:** ¥245590 **Availability:** ✅ In Stock ## Summary > 🕶️ Toughness Meets Tech: Own the Wild with G-Shock Mudmaster ## Quick Answers - **What is this?** G-Shock Casio Mudmaster Master of G Watch GGB100 by g-shock - **How much does it cost?** ¥245590 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/253857004-g-shock-casio-mudmaster-master-of-g-watch-ggb100) ## 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 - • **Quad Sensor Mastery:** Instant access to compass, altimeter/barometer, thermometer, and accelerometer for precise environmental awareness and fitness tracking. - • **Smart Bluetooth Sync:** Seamlessly connect to the G-Shock app for real-time altitude, route tracking, and step count—your adventure companion in your pocket. - • **200M Water Resistance:** Dive, swim, or get caught in the rain—this watch keeps ticking with professional-grade waterproofing. - • **Mud & Dust Proof Armor:** Triple-layer resin bezel with carbon fiber inserts and sealed metal buttons ensure mud resistance and durability in the harshest conditions. - • **Unbreakable Carbon Core:** Engineered with a carbon core guard structure to withstand extreme shocks and impacts, keeping you unstoppable. ## Overview The G-Shock Casio Mudmaster GGB100 is a rugged, carbon-core watch designed for extreme environments. Featuring shock resistance, mud and dust protection, Bluetooth connectivity for mission logging, and quad sensors (compass, altimeter/barometer, thermometer, accelerometer), it’s built to empower professionals and adventurers alike with precise data and unmatched durability. Water resistant up to 200 meters, it’s the ultimate tool for those who demand reliability and smart functionality on every mission. ## Description This is a model from the G-Shock Mudmaster Series, designed for use in extreme environments scattered with rubble, dirt and debris, and uses carbon materials. The use of high rigidity carbon on the case keeps damage and deformation at bay, and ensures a high level of airtightness and shock resistance. This model also features a construction that protects against the invasion of mud, a stainless steel panel back, and a back cover made of shock-resistant fine resin embedded with glass fibers, giving it a high level of resistance to dust and mud. The bezel also uses three layers of fine resin with carbon fiber inserts and is designed to resemble a portable gasoline can that could be found on off-road vehicles. Function-wise, this model comes with compass, altimeter/barometer, temperature reader and pedometer. In addition to being able to easily correct the time using the dedicated CASIO WATCHES app, there are lots of other useful features including the Mission Log feature, which automatically records in the app altitude data obtained from the watch and route data obtained by your smartphone. This is a toughness watch that supports you in taking quick decisions and accurate actions. Review: muy bueno - muy bueno Review: Great watch - Very happy with the watch. At first I'm having second thoughts if this is fake or genuine casio watch due to its low price compare to other seller, but when it arrived, it was a genuine casio G SHOCK GGB 100 Mudmaster. And lastly, received the item two days after I placed the order, and it comes in good packaging. I will definitely recommend and buy from this seller ozdigitalwatch. ## Features - This watch features a carbon core guard structure case, in black with grey accents, that allows the internal mechanics of the watch to be protected from shock-induced damage - Additionally, this watch connects via Bluetooth to a special G-Shock app that helps with the configuration, as well as records altitude data, route information, and step counts - This watch is mud resistant with metal buttons that form a tight seal on the case, a dual back cover that consists of a stainless steel panel back and an outer cover made of shock resistant fine resin embedded with glass fibers, and the bezel has three layers of fine resin with carbon fiber inserts - The Quad Sensor capabilities provide instant access to a compass, altitude/barometer, thermometer, and an accelerometer that keeps track of your step count ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07W43VGYC | | Additional Features | Accelerometer, Barometer, Compass, Shock Resistant, Thermometer, World Time | | Age Range Description | Adult | | Band Color | Gray | | Band Material Type | Resin | | Band Width | 24 | | Bands | 1 | | Best Sellers Rank | #547,108 in Fashion ( See Top 100 in Fashion ) #13,440 in Men's Wrist Watches | | Brand Name | G-Shock | | Case Diameter | 55.4 Millimeters | | Case Material Type | Carbon | | Case Thickness | 6 Millimeters | | Character | Fashion | | Clasp Type | Buckle | | Closure Type | Buckle | | Crystal | Mineral Glass | | Customer Reviews | 4.7 out of 5 stars 1,041 Reviews | | Dial Color | grey | | Display | Analog-Digital | | Embellishment Feature | Crystal | | Face Style | Plain | | Global Trade Identification Number | 00889232235486 | | Included Components | G-Shock app, User Manual | | Item Weight | 92 Grams | | Manufacturer | ['Casio'] | | Manufacturer Part Number | GGB100-1A | | Material | Resin | | Model Name | Mudmaster | | Model Number | GGB100-1A | | Pattern | Solid | | Power Source | Battery Powered | | Shape | Round | | Sport Type | Walking | | Strap Type | Resin | | Style Name | sport | | Theme | Plain | | UPC | 889232235486 | | Unit Count | 1 Count | | Watch Movement Type | Quartz | | Water Resistance Depth | 200 Meters | | Water Resistance Level | Waterproof | ## Images ![G-Shock Casio Mudmaster Master of G Watch GGB100 - Image 1](https://m.media-amazon.com/images/I/414o7f1+u3L.jpg) ![G-Shock Casio Mudmaster Master of G Watch GGB100 - Image 2](https://m.media-amazon.com/images/I/41fp+o+OGzL.jpg) ![G-Shock Casio Mudmaster Master of G Watch GGB100 - Image 3](https://m.media-amazon.com/images/I/41-Loj87SVL.jpg) ![G-Shock Casio Mudmaster Master of G Watch GGB100 - Image 4](https://m.media-amazon.com/images/I/41FvOsvKyyL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Does the g shock mudmaster come with saphire glass?** A: I've had mine for 3½ years. I wear it every day for work doing equipment maintenance. It has a very small hairline scratch on the lens and some bumps around the bezel. The band is still in great condition considering all the bug spray and sunscreen that it comes into contact with. I definitely recommend picking up any G-Shock. Casio makes the best watches in my opinion. **Q: This seller is on g shock website as not authorized !!!???** A: Possibly Gray market dealer, doesn’t mean the watch is bad or fake, you can email them and ask your concerns **Q: Does this have the sun compess in case lost ?** A: In response to another answer: Yes, you can adjust for magnetic declination. In compass mode, hold D until it beeps, press E twice, then use A (East) and C (West) to adjust in 1 degree units. Press A and C together to exit. **Q: What is the band length?** A: From buckle to end of other tip, 10 inches. ## Customer Reviews ### ⭐⭐⭐⭐⭐ muy bueno *by A***Z on 1 November 2025* muy bueno ### ⭐⭐⭐⭐⭐ Great watch *by R***1 on 14 January 2022* Very happy with the watch. At first I'm having second thoughts if this is fake or genuine casio watch due to its low price compare to other seller, but when it arrived, it was a genuine casio G SHOCK GGB 100 Mudmaster. And lastly, received the item two days after I placed the order, and it comes in good packaging. I will definitely recommend and buy from this seller ozdigitalwatch. ### ⭐ Nona buon prodotto *by K***A on 1 December 2021* Ho riparato 2 volta mila rotto di nuovo .. ! Non ha ne meno garanzia ## Frequently Bought Together - Casio Men's G-Shock Master of G Mudmaster Carbon Core Guard Quad Sensor Connected Grey Resin Watch GGB100-1A - Zshion Screen Protector for Casio G-SHOCK GG-B100,Explosion-Proof Ultra-Thin Anti-Scratch Screen Protector for Casio GG-B100 Crystal Clear (3 Pack) --- ## 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.jp/products/253857004-g-shock-casio-mudmaster-master-of-g-watch-ggb100](https://www.desertcart.jp/products/253857004-g-shock-casio-mudmaster-master-of-g-watch-ggb100) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-11*