The GR-B300EC-1AJF is a GRAVITYMASTER model from G-SHOCK's Master of G Air series. Emergency Colors accents — red, orange, and yellow — stand out against a black body, expressing the world of professionals tackling tough missions. It features Carbon Core Guard structure, shock resistance, 200-meter water resistance, Tough Solar charging, and Bluetooth Smartphone Link through the CASIO WATCHES app.
This model includes dual time display, flight log, world time (~300 cities), stopwatch, countdown timer, alarm, and full auto-calendar. It does not include sensors — no compass, no altimeter/barometer, and no thermometer.
