The Casio G-Shock Master of G series equips professionals who confront extreme environments on land and in the sky. This series consists of three models: Gravitymaster GR-B300H-5A, Mudman GW-9500MH-5, and Mudmaster GG-B100XMH-5A.
The Master in Horizon Gold collection itself captures the majestic beauty of the golden horizon where earth meets sky.
Casio infuses these three rugged models with luxury styling, combining light yellow gold ion plating and rich brown accents. This series reflects endless exploration through refined materials and natural earth tones.
Each watch combines a light yellow gold ion-plated metal bezel with brown ion-plated hardware. A dark brown bio-based resin band grounds each timepiece with an earthy aesthetic.
G-Shock Gravitymaster GR-B300H-5A
The Casio Master In Horizon Gold Gravitymaster GR-B300H-5A combines aviation utility with rugged outdoor performance.
The watch utilizes a robust Carbon Core Guard structure to protect internal components. Its resin case contains strong carbon fiber-reinforced materials for maximum durability.
The light yellow gold ion-plated stainless steel bezel adds refined luxury style. Casio accents the metal components with warm brown ion plating.
A dark brown bio-based resin strap secures the timepiece comfortably. Hardened mineral glass covers the front face to resist everyday scratches.
The case measures 54.7mm wide and 59mm long. It features a thickness of 15.7mm on the wrist. The watch weighs 71 grams, providing a lightweight feel.
A screw-lock crown helps ensure serious environmental protection. The housing guarantees 200-meter water resistance for demanding underwater conditions.
The dark brown dial showcases large, raised three-dimensional hour markers. Glowing Neobrite coatings enhance legibility during low-light night flights.
A rotary disc indicator at 9 o’clock resembles modern jet engine blades. Driven by a dual-coil motor, this disc displays battery levels and alarm status.
Tough Solar technology powers the internal quartz movement using ambient light sources.
Bluetooth connectivity links seamlessly to smartphones for automatic accurate time adjustment. Flight log functions and world time features serve active traveling pilots worldwide.
G-Shock Mudman GW-9500MH-5
The Mudman GW-9500MH-5 serves land explorers navigating harsh, dirty terrains. Special mud-resistant gaskets seal every button to keep out dirt, dust, and debris.
Its compact design delivers extreme durability without adding unnecessary bulk to the wrist.
The case spans 52.7mm in diameter and maintains a slim thickness of 14.8mm. Overall case length reaches 56.7mm, and the total weight equals 88 grams.
The watch guarantees 200 meters of water resistance for underwater tasks. Mineral glass covers the high-contrast digital display.
The watch uses a dual-layer LCD with a dark, high-contrast digital display screen. The duplex LCD overlays digital compass pointers directly onto timekeeping data.
Yellow gold highlights border the screen, while brown accents frame the outer perimeter. A clear white LED backlight illuminates the screen in total darkness.
This model runs on solar quartz power complemented by Multi-Band 6 radio time calibration.
The internal module automatically captures radio signals from six global transmitters every day.
Its integrated Triple Sensor accurately measures compass bearing, barometric pressure, altitude, and temperature. The Carbon Core Guard structure keeps the watch dust, mud, and shock resistant.
G-Shock Mudmaster GG-B100XMH-5A
The Casio G-Shock Master In Horizon Gold Mudmaster GG-B100XMH-5A delivers rugged utility and high-end aesthetics. This watch belongs to the tough Master of G Land collection.
Its carbon fiber-reinforced bio-based resin case features a durable Carbon Core Guard structure. A stainless steel bezel with light yellow gold ion plating surrounds the dark dial.
Brown ion-plated metal buttons and accents complement the overall warm color scheme. The dark dial exhibits a textured finish, high-contrast markers, and a digital display.
Spherical mineral glass covers the face to protect against intense impacts. A dark brown bio-based resin strap secures the timepiece firmly to the wearer’s wrist.
The case measures 51.3mm in diameter and features a prominent thickness of 19.4mm. The complete case length measures 55.4mm, while total weight sits at 104 grams.
Water resistance reaches 200 meters to survive heavy storms, deep water immersion, and exceptional mud resistance.
The timepiece operates on a precision quartz module powered by a CR2025 battery. It includes Quad Sensor technology featuring a digital compass, altimeter, barometer, thermometer, and step tracker.
Built-in Bluetooth Mobile Link connects seamlessly with the CASIO WATCHES app for time synchronization.
The app enables automatic time correction, location indicator logs, and mission data recording. This Mudmaster combines serious survival functionality with a refined, outdoor-inspired style.
All three watches utilize bio-based resins for their outer cases, bezels, and dark brown straps.
This eco-conscious material reduces environmental impact while maintaining iconic G-Shock durability. Flexible bio-resin straps feature robust stainless-steel buckles coated in brown ion plating.
Each watch employs a Carbon Core Guard frame to absorb harsh impacts efficiently. Carbon fiber integration keeps the internal modules secure against strong vibrations and sudden drops.
The collection perfectly balances sophisticated metallic luxury with uncompromising, professional-grade field performance.
