How do I know what model my G-Shock is?

In addition to the serial number, all G-Shock watches also come equipped with a model number located on the back of the watch or on the packaging . Make sure to verify the model number with the manufacturer or an authorized retailer you are purchasing from as.

Why is G-Shock so expensive?

Why are G-Shock watches expensive? G-Shock watches are expensive because of their advanced technology, durable design, and reputation for quality .

What does the G in G-Shock stand for?

The G-Shock is a line of watches manufactured by the Japanese electronics company Casio, designed to resist mechanical stress, shock and vibration. G-Shock is an abbreviation for Gravitational Shock .

Can you replace your own G-Shock battery?

Leave battery replacement up to your original retailer or authorized CASIO service center . Have the battery replaced only with the type specified in the “Specifications”. Use of a different battery type can cause malfunction.

Is G-Shock Made in Thailand real or fake?

Is Casio made in Thailand original? Yes,Casio the original parent company from Japan has a large plant in Thailand so it's as original as it gets .

Is G-SHOCK worth buying?

Buying G-Shock watches can be an excellent decision for several reasons . Here are a few key factors why you should consider purchasing these durable and functional watches: Extreme Durability: G-Shock watches are known for their extreme resistance to shocks, impacts, and water.

Why do rappers like G-Shocks?

In the 90s, G-Shock watches were a staple accessory for many rappers and hip-hop artists. They were seen as a symbol of toughness and resilience , embodying the same characteristics that many rappers and hip-hop artists strived for.

Do G-Shocks last a lifetime?

Featuring a collection of shock-resistant watches perfect for any activity you have planned ahead, G-Shock watches from Pascoes are stronger than ever and guaranteed to last you a lifetime .

How old are G-Shock watches?

IBE Kikuo introduced the G-SHOCK to the world in 1983 . The watch eventually drew attention in the United States before making a sensational splash in Japan, as well. By the early 1990s, it was such a hit that stock would sell out immediately upon arrival in the shops.

Do Navy Seals use G-Shock?

a Casio G-Shock DW-6600 on wrist of U.S. Navy Seal during VBSS (visit, board, search and seizure). photo courtesy U.S. Navy. Casio G-Shocks are very popular with U.S. Navy Seals , mostly because they kick ass over any other timepieces, most especially Rolex subs. Years ago, we were actually given G-Shock watches.

Do special forces wear G-Shock?

But for actual hard use of virtually any kind and especially military applications, the kind of things that would destroy your Rolex in seconds, the G-Shock remains the single best option on the market, as capable on the wrist of an elite special operator as it is on the archetypal Home Depot dad.

How do you know your watch model?

In order to see the model number, the watch's bracelet/strap will need to be removed. One lug will show the watch's serial number and the other lug will have the watch's model number .

How do I know what generation I watch I have?

Open the 'My Watch' tab and then click General -> About . Scroll down and find the Model Number . Once you have your model number you can compare it to the list below.

How to read Casio model numbers?

The watch Model Code will start with a letter or set of letters, followed by numbers . e.g. G-2900 (The numbers in the box are the module number for the watch movement and are not part of the model code.) Using the Model Code code you can now identify the correct replacement watch strap for your watch.

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray

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MASTER OF G - AIR

GRAVITYMASTER

NEW05/2024

An organic form inspired by next-generation aircraft is expressed.
Layer Guard with a fusion of different materials
Coloration evoking the look of a co*ckpit
Back engraving

My GShock

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WHERE TO BUY

The sky’s the limit! Introducing the GRAVITYMASTER GRB300, a piece of aviation-inspired professional gear designed to work even in the harshest environments, from the G-SHOCK MASTER of G line.The GRB300 features a Carbon Core Guard structure, which delivers the shock-resistance, rigidity, and corrosion-resistance of carbon material used in aircraft fuselages. The carbon fiber-reinforced resin case and the seamless bezel design inspired by next-generation aircraft come together in a bold and powerful form. Envision the world through a pilot’s eyes with the flight log memory function for recording current location and time, as well as dual-time simultaneously displaying the time in two time zones. In addition, simply tap on the app to instantly switch between the time back home and local time — a practical function to make traveling abroad that much smoother.Large, dimensional index marks and a metal bezel accentuating the large watch face exude functionality, enhancing the visibility that is so important for pilots, whose job demands intuitive reading of time.The rotary disc indicator at the 9 o’clock position uses a dual-coil motor to ensure smooth rotation and functional beauty. The indicator not only rotates to display alarm on/off and stopwatch; it functions as a battery level indicator as well.The high-contrast black and white color scheme dotted with color accents on the dial and buttons evokes the look of a co*ckpit instrument panel, while dark color variations express the practical functionality of an aviation worldview.Key resin components used in the case, bezel, and band are made with bio-based resin, a material expected to help reduce environmental impact.

An organic form inspired by next-generation aircraft is expressed.
Layer Guard with a fusion of different materials
Coloration evoking the look of a co*ckpit
Back engraving

Shock resistant
20 bar water resistant
Keeps yourself in time
Stable solar power
Easy to operate via smartphone

Specifications

Case size (L× W× H)

59 × 54.7 × 15.7 mm

Weight

71 g

Case and bezel material

Carbon / Bio-based resin

Band

Bio-based resin band

Construction

Shock Resistant

Carbon Core Guard structure

Water resistance

200-meter water resistance

Time adjustment

Bluetooth: Connects to a smartphone and automatically adjusts the time

Power supply and battery life

Tough Solar (Solar powered)

Smartphone Link feature

Mobile link (Wireless linking using Bluetooth®)

Apps

CASIO WATCHES

App connectivity feature

Auto time adjustment

Easy watch setting

Approximately 300 world time cities

Phone finder

Glass

Mineral Glass

Crown

Screw Lock Crown

Compatible band size

145 to 215 mm

Other

Neobrite

World time

Dual time (Home City time swapping)

Stopwatch

1-second stopwatchMeasuring capacity: 23:59'59.Measuring modes: Elapsed time, split time

Timer

Countdown timerMeasuring unit: 1 secondCountdown range: 24 hoursCountdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)

Alarm/hourly time signal

Daily alarm

Light

LED light (Super Illuminator)Afterglow

Light color

LED:White

Calendar

Full auto-calendar (to year 2099)

Energy saving feature

Power Saving (hands stop to save power when the watch is left in the dark)

Battery display/alert

Battery level indicator

Run time

Approx. battery operating time:5 months on rechargeable battery (operation period with normal use without exposure to light after charge)18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Accuracy

Accuracy: ±15 seconds per month (with no mobile link function)

Other features

Date display

Day indicator

Regular timekeeping:Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)

Operation Guide (Opens in a new tab)

MOVIES

PRODUCT MOVIE

PROMOTION MOVIE

FEATURES

Seamless design offering functional beauty

An organic form inspired by next-generation aircraft is expressed with the seamless exterior design. A sense of unity is achieved by connecting the exterior surfaces, from the case to the band, smoothly and seamlessly. This design creates a tough, cutting-edge look, seemly for a new addition to the GRAVITYMASTER line.

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (24)

DETAILS

Layer Guard and Carbon Core Guard structures: Featuring innovative combinations of materials

The intricately shaped bezel employs integrated moulding and has two rings — a metal ring and a urethane ring — installed beneath it. This combination of materials gives the bezel — a structural component — a refined visual presence that embodies the intricacy and sophistication of next-generation aircraft. The case is made with carbon fibre-reinforced resin, a material delivering both strength and lightness. The side buttons have anti-slip texturing inspired by hazard warning stripe tapes, and the guards beneath the buttons have been eliminated for even better operability.

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (37)

Rotary disc indicator: Offering display for multiple functions

The rotary disc indicator at the 9 o’clock position uses a dual-coil motor to ensure smooth rotation. It indicates battery level and alarm on/off status, as well as displaying motion linked to each mode.

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (38)

Flight log: Helpful for flight history management

Sync the watch with a smartphone and press a button on the watch to record the current time and position on a map within the dedicated app — a useful function for managing flight logs with details including times and locations of departure and arrival. In addition, plotted data can be grouped for batch management of travel record details including points of departure, transit points, and home destinations.

*This app is currently in development, and specifications are not yet final.

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (39)

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (40)

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (41)

Attention to materials: Bio-based resin

Key resin components used in the case, bezel, and band are made with bio-based resin. Produced using renewable organic resources, this material is expected to help reduce environmental impact.

*Graphic is included for illustrative purposes.

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (42)

Solar-powered timekeeping with Bluetooth® for enhanced accuracy and reliability

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (43)

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (44)

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (45)

Super Illuminator (high-brightness LED light) for maintaining watch readability in the dark

*Image shows the GR-B300-1A.

GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (46)

*The color tone of the listed products may differ from the actual product in some cases.

Support

FAQs (Frequently Asked Questions)
Manuals(Watches)
iOS / Android
Video Tutorials
G-SHOCK International Warranty Network

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GRB300-1A4 | G-SHOCK MASTER OF G - AIR Gray | CASIO (2024)