G-SHOCK Master of G Watches – Mudmaster, Frogman, Rangeman, Gravitymaster (Japan Models)

Seiko

Casio

Citizen

Orient

Oyaide

Sony

Tiger

Panasonic

Audio Technica

Zojirushi

View all Brands

Casio

Frogman GF-8251K-7JR Love The Sea And The Earth

The G-Shock GF-8251K-7JR "Love The Sea And The Earth" is a limited edition G-Shock watch that stands as a testament to Casio's commitment to environmental conservation and its dedication to creating rugged and reliable timepieces. This unique watch...

MSRP: $1,094.00

Was:

Now: $944.00

View Detail
Casio

G-Shock Land Mudmaster Flare Red GWG-2040FR-1AJR

The Mudmaster GWG-2040FR-1AJR is a striking and robust timepiece that continues the G-Shock tradition of toughness and innovation. Designed to endure the harshest conditions, this Mudmaster model combines a rugged exterior with vibrant aesthetics, making...

MSRP: $1,369.00

Was:

Now: $1,184.00

View Detail
Casio

G-Shock Mudmaster Land Gray GWGB1000 | GWG-B1000-1AJF

Featuring a Carbon Core Guard structure, the GWG-B1000-1AJF boasts exceptional shock resistance, ensuring its reliability in extreme situations. Its mud-resistant construction prevents debris and dirt from infiltrating the watch, making it ideal for...

MSRP: $869.00

Was:

Now: $744.00

View Detail

Compare Selected

G-SHOCK Master of G – Air, Land, Sea

The G-SHOCK Master of G series represents the ultimate expression of toughness, precision, and purpose-built design. Developed for professionals who operate in the most unforgiving environments on Earth, each model in the Master of G lineup is meticulously engineered to thrive in a specific domain—Air, Land, or Sea. Whether you’re navigating remote mountain ranges, flying high above the clouds, or diving into deep ocean waters, Master of G watches are the tools trusted by elite military units, rescue teams, and adventurers around the world.

Master of Land – Built to Endure the Harshest Terrain

When the mission takes you off-road and off-grid, the Land Series delivers. Models like the Mudmaster and Rangeman are equipped with mud-resistant cases, carbon fiber reinforcement, and advanced sensor technology, including altimeter, barometer, compass, and thermometer. The GWG-2000 Mudmaster, for example, features a forged carbon bezel, Triple Sensor, and solar-powered movement—ready for deserts, jungles, and disaster zones alike. The Rangeman GW-9400, known for its single-button sensor access, is built for survivalists and serious outdoor professionals.

Master of Sea – Dive Into the Deep

The Sea Series is engineered for those who work above or below the waves. The Frogman, one of the most iconic G-SHOCK lines, is ISO-certified for diving and features dive time logs, tide and moon data, and Bluetooth connectivity in modern versions like the GWF-A1000. With a fully analog display and carbon monocoque case, it brings serious performance and bold style. The Gulfmaster, on the other hand, is equipped for weather-related challenges with barometer alerts, tide graphs, and storm warnings—perfect for maritime professionals, boaters, and coastal explorers.

Master of Air – Dominate the Skies

The Air Series takes toughness to the stratosphere. The Gravitymaster collection is built for aviation, with features like GPS hybrid radio-controlled timekeeping, carbon core guard structure, shock resistance, and large, legible displays for reading at altitude. Models like the GR-B300 or GPW-2000 are designed to withstand G-forces, vibration, and rapid altitude changes, making them indispensable tools for pilots and aviation specialists.

Why Choose Master of G?

Triple Sensor or Quad Sensor Functions
Shock, Mud, Vibration & Water Resistance (ISO-certified in Frogman models)
Tough Solar Power + Multi-Band 6 Time Calibration
Carbon Core Guard or Monocoque Cases for Maximum Strength-to-Weight Ratio
Bluetooth Smart Connectivity on Select Models
From deep-sea operations to airborne missions and ground-level survival, G-SHOCK Master of G is more than a watch—it’s your tactical instrument for extreme conditions.

sijwatch