For use in the air: Developed by pilots in the British Royal Air Force and tested in demanding day-to-day situations, GRAVITYMASTER watches defy extreme conditions, making them a reliable companion to real adventurers, outdoor enthusiasts and even pilots. High-quality, perfectly finished materials, striking analogue designs and innovative technology, such as radio control, solar-powered operation and Smart Access, make these robust watches stand out

These Quad Sensor Bluetooth connected G-SHOCK Master of G “GRAVITYMASTER” GRB0 models pack flight mission essential functions into a tough and rugged carbon core guard structure.

A high-strength, highly weather-resistant Carbon Core Guard Structure protects the module with a resin case reinforced with carbon fibers. This, combined with world-renowned G-SHOCK shock resistance, creates a structure that is also highly vibration resistant.

The bezel is made up of three layers of resin with carbon fiber inserts. The top layer is semi-transparent to reveal the carbon material inside. The three buttons on the right side of the watch are arranged in a way that makes them resemble a fighter jet control stick, while also contributing to ease of operation.

The Quad Sensor system of these models uses compact sensors that make it possible to pack compass, altitude/barometer, and temperature measurement capabilities, along with an accelerometer that keeps track of your step count, into a compact configuration. This makes it easy to keep tabs on the natural environment around you and to maintain logs of your activities for comprehensive flight mission support. A special G-SHOCK phone app simplifies configuration of watch settings, and also provides a Mission Function


Carbon Core Guard Structure

Bluetooth smartphone link
Quad Sensor



Digital Compass

Step Counter


Bluetooth® Smart
The watch is equipped with energy-saving Bluetooth® technology, which offers power-saving data transfer at the push of a button. The watch can connect to a smartphone wirelessly via Bluetooth®, enabling access to a wide range of useful functions

Smartphone time
Local time will automatically be adjusted whenever the watch is connected with a smartphone

Super-Auto LED Light
If the ambient light fades, a turn of your wrist illuminates the watch display particularly brightly and in colour

Shock-resistant construction protects against impact and vibration

A luminous coating provides long-term illumination in the dark after only a short exposure to light

Barometer (260 / 1.100 hPa)
A special sensor measures the air pressure (measuring range: 260 / 1100 hPa) and presents this on the display in the form of a symbol. This enables early detection of weather trends

A built-in direction sensor detecs the magnetic north

10,000 m Altimeter
A pressure sensor detects changes in the air pressure and converts the result into an altitude up to 10,000 m

The watch has a built-in 3-axis accelerometer that counts the steps you take and indicates the numbers on the display

Thermometer (-10°C / +60°C)
A sensor measures the ambient temperature around the watch and displays it in °C (-10°C /+60°C)

Height Gain
The height gain sums all the meters you have climbed in a session, so that you can see at a glance the total ascent on a tour

World time function
Displays the current time in major cities and specific areas around the world

Stopwatch function – 1/100 sec. – 24 hours
Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours

Timer – 1/1 min. – 24 hours
For fans of precision: the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. The time can be set to the nearest minute and up to 24 hours in advance. Ideal for people who need to take medicines every day or those who do interval training

5 daily alarms
The daily alarm reminds you about recurring events with an acoustic signal at the time you have set. This model has 5 independent alarms for flexible reminders of important appointments

Hand Moving Function
With a push of a button, hands are moving and permit a free visibility of functions like stopwatch or date

Phone Finder
Misplaced your smartphone? All it takes is the push of a button on your watch and the smartphone sounds an alarm.

Airplane Mode (Offline Mode)
At the touch of a button, the watch switches to offline mode. This means that you can disable the wireless or GPS receiver when in the air for the duration of the flight

Button tones on/off
The button tones for using the mode button can be turned off. This means that the watch no longer beeps when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated

Automatic calendar with Date, Day and Month
Once set, the automatic calendar always displays the correct date

12/24-hour timekeeping
Times can be displayed in either a 12-hour or 24-hour format

Mineral glass
The tough mineral glass resists scratching

Carbon-reinforced resin casing
Thanks to its extremely high level of durability, resin is the ideal material for watches. Combining resin with carbon—a particularly robust material—creates a casing that is even more stress-resistant and offers even greater protection against external influences, resulting in an extremely high level of durability

Carbon bezel
The bezel is made of genuine carbon fiber and is an attractive eye-catcher

Resin band
Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties

The bracelet is equipped with a buckle

Battery change indicator

An icon appears when it is time to change the battery

2 Years – 1 Battery
The battery supplies the watch with sufficient energy for approx. two years.

Water resistance classification ( bar)
Perfect for free diving without scuba gear: the watch is water resistant up to bar according to ISO 22810

Chronometric precision
+/- 15 Seconds per month

Battery type

Dimensions (H x W x D)
63 mm x 54,1 mm x 18,3 mm

80 g

Additional information


G-Shock Gravitymaster





With Papers


Reference Number




Manufacturer Warranty

2 Years

With Original Box/Packaging





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