Casio G-Shock Gravitymaster GR-B300RY-1A9ER | Shock Resistant, Solar Powered, Bluetooth
Authentic Casio — Authorised Seller Sold by Gadgeticloud. Every watch includes the full manufacturer’s warranty.
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Delivered in 6–10 business days
Tracked · Ships in its official Casio retail box
30-day returns
Unworn & original packaging · 1-yr Casio warranty
Duties & Taxes Included — 100% paid. No customs surprises at delivery.
Master the Skies, Conquer the Day
Designed for the aviator and the adventurer, this G-Shock Gravitymaster combines rugged durability with smart technology. Its solar-powered engine and Bluetooth connectivity ensure precision and reliability, making it the perfect co-pilot for those who demand excellence in every journey.
Specifications
| Model Number | GR-B300RY-1A9ER |
| Case Size (L× W× H) | 59 × 54.7 × 15.7 mm |
| Weight | 71 g |
| Case and Bezel Material | Bio-based Carbon / Bio-based resin / Stainless steel |
| Band | Bio-based resin band |
| Construction | Shock Resistant |
| Water Resistance | 200-meter water resistance |
| Time Adjustment | Bluetooth: Connects to a smartphone and automatically adjusts the time |
| Power Supply | Tough Solar (Solar powered) |
| Smartphone Link Feature | Mobile link (Wireless linking using Bluetooth®) |
| Apps | CASIO WATCHES |
| App Connectivity Feature | Auto time adjustment |
| Glass | Mineral Glass |
| 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 (normal use); 18 months on rechargeable battery (power save function on) |
| Accuracy | ±15 seconds per month (with no mobile link function) |
| Other Features | Date display |
Key Features
- Shock Resistant construction for ultimate durability.
- Tough Solar power ensures reliable, long-lasting performance.
- Bluetooth® Mobile Link for automatic time adjustment via smartphone.
- 200-meter water resistance suitable for diving and water sports.
- Dual time display and full auto-calendar for global precision.
- LED Super Illuminator light with afterglow for visibility in low light.
