Description
Casio G-SHOCK GRAVITYMASTER Bluetooth Solar Men Watch - Black & Orange | GR-B300-1A4DR
Casio G-SHOCK GRAVITYMASTER Bluetooth Solar Men Watch - Black & Orange | GR-B300-1A4DR combines aviation-inspired styling with bold orange cockpit accents and a wide three-dimensional analog dial. It features Tough Solar charging, Bluetooth® Smartphone Link, Carbon Core Guard construction, Flight Log recording, Dual Time, and 200-meter water resistance.
Casio G-SHOCK GRAVITYMASTER Bluetooth Solar Men Watch - Black & Orange | GR-B300-1A4DR belongs to the MASTER OF G – AIR collection and is designed as professional aviation-inspired gear. Its rugged black exterior is enhanced with orange and red accents inspired by aircraft cockpit instruments, while the wide triple-layer dial provides excellent depth and readability.
The watch features a Carbon Core Guard structure with a carbon-fiber-reinforced resin case. This construction provides shock resistance, rigidity, and corrosion resistance while maintaining a lightweight 71 g design. Bio-based resin is used for the case components and strap, offering comfortable everyday wear.
Tough Solar technology converts natural and artificial light into power. Bluetooth® Smartphone Link connects the watch to the CASIO WATCHES app for automatic time adjustment, easy settings, access to approximately 300 World Time cities, Flight Log recording, and Phone Finder. Dual Time displays two time zones simultaneously and allows quick home/local time swapping.
Additional functions include a 1-second stopwatch, 24-hour countdown timer, daily alarm, Super Illuminator LED light, battery-level indicator, Power Saving mode, and 200-meter water resistance.
- MASTER OF G – AIR GRAVITYMASTER design
- Black finish with orange and red cockpit accents
- Wide three-dimensional analog dial
- Carbon Core Guard structure
- Bio-based carbon and resin case
- Bio-based resin strap
- Shock Resistant construction
- Tough Solar charging
- Bluetooth® Smartphone Link
- CASIO WATCHES app compatibility
- Automatic time adjustment
- Flight Log recording
- Dual Time display
- Approximately 300 app-based World Time cities
- Super Illuminator LED light
- Battery-level indicator
- Power Saving mode
- 200-meter water resistance
| Specification | Details |
|---|---|
| Brand | Casio |
| Series | G-SHOCK MASTER OF G – AIR |
| Model | GR-B300-1A4DR |
| Collection | GRAVITYMASTER GR-B300 Series |
| Color | Black / Orange / Red |
| Product Type | Men’s Aviation Watch |
| Display | Analog |
| Movement | Tough Solar Quartz |
| Case & Bezel Material | Carbon / Bio-Based Resin |
| Structure | Carbon Core Guard |
| Construction | Shock Resistant |
| Band Material | Bio-Based Resin |
| Glass | Mineral Glass |
| Water Resistance | 200 m / 20 Bar |
| Power Supply | Tough Solar |
| Case Size | 59 × 54.7 × 15.7 mm |
| Weight | 71 g |
| Compatible Wrist Size | 145–215 mm |
| Connectivity | Bluetooth |
| Smartphone Link | Mobile Link via Bluetooth |
| Compatible App | CASIO WATCHES |
| Automatic Time Adjustment | Yes |
| Easy Watch Setting | Yes |
| App World Time | Approx. 300 Cities |
| Flight Log | Yes |
| Phone Finder | Yes |
| World Time | Dual Time with Home-City Time Swapping |
| Stopwatch | 1-Second |
| Stopwatch Capacity | Up to 23 Hours, 59 Minutes and 59 Seconds |
| Stopwatch Modes | Elapsed Time and Split Time |
| Countdown Timer | Up to 24 Hours |
| Timer Setting Range | 1 Minute to 24 Hours |
| Alarm | Daily Alarm |
| Light | Super Illuminator LED |
| Afterglow | Yes |
| LED Color | White |
| Neobrite | Yes |
| Battery-Level Indicator | Yes |
| Rotary Function Indicator | Alarm, Stopwatch and Battery Status |
| Power Saving | Yes |
| Battery Operating Time | Approx. 5 Months Without Light Exposure |
| Power-Save Operating Time | Approx. 18 Months After Full Charge |
| Calendar | Full Auto Calendar to 2099 |
| Accuracy | ±15 Seconds per Month Without Mobile Link |
| Analog Timekeeping | Three Hands and Multiple Inset Indicators |
Additional Information
GENDER: |
Men |
WATCH TYPE: |
Connected / Bluetooth |
BAND MATERIAL: |
Bio-Based Resin |
BAND TYPE: |
Standard Strap |