
Product Description
The G-SHOCK GR-B300-1A4 is built for aviation-inspired toughness with advanced connectivity and solar-powered performance. Its bio-based carbon and bio-based resin case features a Carbon Core Guard structure, paired with a bio-based resin band for lightweight durability. With Bluetooth® smartphone linking, Tough Solar power, dual time, flight log, 200-meter water resistance, Super Illuminator LED light, and practical everyday functions, this robust analog model is designed for reliable performance on the move.
SKU: GR-B300-1A4
| Case & Exterior | |
|---|---|
| Case Size (L × W × H) | 59 × 54.7 × 15.7 mm |
| Weight | 71 g |
| Case & Bezel Material | Bio-based carbon / Bio-based resin |
| Band | Bio-based resin band |
| Construction | Shock resistant Carbon Core Guard structure |
| Water Resistance | 200-meter water resistance |
| Glass | Mineral glass |
| Crown | Screw lock crown |
| Compatible Band Size | 145 to 215 mm |
| Other | Neobrite |
| Time Adjustment | Bluetooth® smartphone connection with automatic time adjustment |
| Power Supply | Tough Solar |
| Country of Origin | Thailand |
| Smartphone Link & Features | |
|---|---|
| Smartphone Link | Mobile link using Bluetooth® |
| App | CASIO WATCHES |
| App Connectivity | Auto time adjustment Easy watch setting Approximately 300 world time cities Flight log Phone finder |
| World Time | Dual time with Home City time swapping |
| Stopwatch | 1-second stopwatch Measuring capacity: 23:59'59 Elapsed time and split time measurement |
| Timer | Countdown timer Measuring unit: 1 second Countdown range: 24 hours Start time setting: 1 minute to 24 hours |
| Alarm | Daily alarm |
| Light | White LED Super Illuminator Afterglow |
| Calendar | Full auto-calendar to year 2099 |
| Energy Saving | Power Saving: hands stop to save power when left in the dark |
| Battery Display | Battery level indicator |
| Run Time | 5 months on rechargeable battery with normal use after charge 18 months on rechargeable battery in total darkness with Power Saving after full charge |
| Accuracy | ±15 seconds per month without mobile link function |
| Other Features | Date display Day indicator |
| Regular Timekeeping | Analog: 3 hands for hour, minute, and second, with minute hand moving every 10 seconds 3 dials for dual time hour and minute, dual time 24-hour, and day |
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