








G-Shock
Gravitymaster Yellow Resin Watch
GRB300RY-1A9
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Gravitymaster Yellow Resin Watch
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Gravitymaster Yellow Resin Watch
or 4 payments of $78.75
- Repay in 4 installments fortnightly, interest-free.
- The maximum purchase amount is $3,000.
- Learn more about Afterpay
Klarna
- Split your purchase into 4 interest-free payments, paid automatically every 2 weeks.
- Get it now. Pay later. Shop first and pay up to 30 days after placing your order. No upfront payments, no interest.
- Get more time to pay for what you love, spread the cost over smaller monthly payments.
- Learn more about Klarna
- Apply for $1,000 - $50,000 credit limit
- Pay nothing today
- Up to 60 months interest free*
- $9.95/mth account fee or $0 if nothing owing
- One off establishment fee up to $99 may apply
- Learn more about Zip
Gravitymaster Yellow Resin Watch
Register to receive a notification when this item comes back in stock.
Overview
- Strap
- Resin
- Yellow
- Movement
- Solar
- Functions
- Luminous markers
- Alarm · Day Display +2
This GRAVITYMASTER is part of the Master of G line, designed for professionals in aviation and rescue missions.
It features a next-generation aircraft-inspired design with a durable Carbon Core Guard structure. The watch pairs bold black components with eye-catching rescue yellow accents for high visibility and toughness. Powered by Tough Solar technology and connected via Bluetooth®, this timepiece offers dual time display and a flight log function, delivering reliable performance in demanding environments. Key resin components in the case and band are made with bio-based resin to reduce environmental impact.
Specifications
- Case and bezel material
- Bio-based Carbon / Bio-based resin / Stainless steel
- Band
- Bio-based resin band
- Construction
- Shock Resistant / Carbon Core Guard structure
- 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 Flight log Phone finder
- Crown
- Screw Lock Crown
- Surface treatment
- Black ion plated bezel
- Compatible band size
- 145 to 215 mm
- Other
- Neobrite
- World time
- Dual time (Home City time swapping)
- Stopwatch
- 1-second stopwatch Measuring capacity: 23:59'59. Measuring modes: Elapsed time, split time
- Timer
- Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown 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)
- Case size (L× W× H)
- 59 × 54.7 × 15.7 mm
- Glass
- Mineral Glass
- Gender
- Unisex and Male
Built not to break

A module that floats
Inside a hollow case, the module (the heart of the watch) seems to float, so knocks from outside are softened before they reach it. The idea came from watching children play with a rubber ball.
Tough Solar
A thin, film-like solar panel is fitted into the dial around the display, and it turns even weak light, such as from fluorescent lamps, into power.

2-year warranty
Every G-SHOCK watch from Watch Direct comes with a 2-year warranty from Shriro Australia, Casio’s exclusive Australian distributor.
Watch Direct is an authorised G-SHOCK retailer, trading since 2011.

About G-SHOCK

G-SHOCK began with a dropped watch. Casio designer Kikuo Ibe saw a watch break when it fell, and proposed “a durable watch that would not break even if dropped”. The project set itself the “Triple 10” goal: survive a 10-metre drop, resist water to 10 bar and run for 10 years on one battery. The first G-SHOCK, the DW-5000C, arrived in 1983.
Shop all G-SHOCK
Reviews
Shipping & Returns
Free Shipping Anywhere in Australia
- Get Your Order Shipped in Record Time - Most Orders Sent Within 24 Hours!
- Efficient Same Day Delivery in Sydney - Calculated at Checkout
- Signature on Delivery is included on all shipments within Australia.
- DHL Express is available for fast and secure international shipments.
View our Shipping Page for More Information
Returns Policy
You have 30 days from the date of purchase to return your item.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
View our Returns Page for More Information


