
Product Description
This G-SHOCK GRAVITYMASTER watch features a bio-based carbon, bio-based resin, and stainless steel case with a bio-based resin band, shock-resistant construction, Carbon Core Guard structure, Tough Solar power, and Bluetooth smartphone link. Built with 200-meter water resistance, mineral glass, screw-lock crown, light yellow gold ion-plated bezel, Neobrite, dual time, stopwatch, countdown timer, daily alarm, LED Super Illuminator, flight log, phone finder, and power saving function, it delivers rugged aviation-inspired performance with modern connected functionality.
SKU: GR-B300H-5A
| Case & Exterior | |
|---|---|
| Case Size | 59 × 54.7 × 15.7 mm |
| Weight | 71 g |
| Case & Bezel Material | Bio-based carbon / Bio-based resin / Stainless steel |
| Band | Bio-based resin band |
| Glass | Mineral glass |
| Crown | Screw-lock crown |
| Surface Treatment | Light yellow gold ion-plated bezel |
| Compatible Band Size | 145 to 215 mm |
| Construction | Shock resistant Carbon Core Guard structure |
| Water Resistance | 200-meter water resistance |
| Other Exterior Feature | Neobrite |
| Movement & Features | |
|---|---|
| Power Supply & Battery Life | Tough Solar / Solar powered |
| Time Adjustment | Bluetooth: connects to a smartphone and automatically adjusts the time |
| Smartphone Link | Mobile link using Bluetooth® CASIO WATCHES app |
| App Connectivity Features | 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 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 |
| Alarm | Daily alarm |
| Light | LED light with 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. 5 months on rechargeable battery with normal use after full charge Approx. 18 months on rechargeable battery when stored in total darkness with power save function on after full charge |
| Accuracy | ±15 seconds per month with no mobile link function |
| Other Features | Date display Day indicator Regular timekeeping: analog 3 hands, hour, minute with hand moving every 10 seconds, second 3 dials: dual time hour and minute, dual time 24-hour, day |
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