If you’ve been eyeing Casio’s aviation-inspired Gravitymaster series, now’s a great time to pull the trigger. The G-Shock Gravitymaster GRB300-1A4 pilot watch is currently available for just $180 at Casio.com, a 40% discount off its usual retail price of $300.
The GRB300-1A4 is designed to capture the mood of a night cockpit, and Casio really commits to the bit. The watch pairs a matte black body with bright orange accents inspired by low-glow instrument lighting aboard an aircraft. Up close, the triple-layered dial and 3D indices give the face a surprising amount of depth, while the oversized hands and Super Illuminator LED make quick readability a non-issue in dim cabins or dark streets.
If you’d rather lean into a more tech-forward cockpit aesthetic, the Gravitymaster GR-B300-8A2 is also on sale for $180 (40% off). This one swaps the orange glow for a gray-and-digital-blue, HUD-inspired design while still retaining bold, still aviation-centric, and easily one of the most futuristic-looking variants in the series.
View the Gravitymaster GR-B300-8A2 deal at Casio
Except for the color scheme, both watches share the same build and features. The bezel flows in a single smooth contour—Casio says it’s modeled after next-generation aircraft—and the entire case uses carbon fiber–reinforced resin to keep things light without compromising strength. Both have the usual G-Shock credentials, including 200-meter water resistance, shock protection, and the Carbon Core Guard structure.
The GRB300-1A4 and GRB300-8A2 also bring a handful of smart touches. Bluetooth syncing with the Casio app automatically updates the time four times throughout the day (no matter where you land), while dual-time tracking lets you keep tabs on both your departure and destination zones. You also get the usual time-keeping features, such as world time, alarms, a stopwatch, a rotary status indicator, and a full auto-calendar round out the feature set.
Key features
- Analog watch with Super Illuminator LED light
- Case made out of carbon fibre-reinforced resin
- Triple-layer dial
- Dual-time display
- Flight log function
- Tough Solar charging (up to 18 months on rechargeable battery when stored in darkness)
- Bluetooth connectivity with Casio app integration
- Rotary disc indicator at 9 o’clock for battery level and alarm status
- World time for 300 cities
- Phone finder
- Full auto-calendar
- 1-second stopwatch
- Hourly time signal
- 200-meter water resistance and shock resistance
View the Casio Pro Trek RG-270-1 Black Friday deal at Amazon
Disclaimer: Notebookcheck is not responsible for price changes carried out by retailers. The discounted price or deal mentioned in this item was available at the time of writing and may be subject to time restrictions and/or limited unit availability.
Source(s)
Casio.com (linked in the article)













