Casio’s HUD: G-SHOCK GRAVITYMASTER GRB300-8A2 Pilot Watch

Just as the Head-up Display (HUD) is an icon of innovation in aviation history, the G-SHOCK GRAVITYMASTER series of pilot watches is an icon of innovation in timepieces designed for performance in flight with an aviation aesthetic. Casio has a passion for aviation, and the G-SHOCK GRAVITYMASTER GRB300-8A2 pilot watch is that passion made manifest. With a gray/blue design modeled after a HUD, the innovative bezel and triple-layer dial combine to fashion a pilot watch that looks molded from a cockpit itself.

Next-generation aircraft sport seamless-edge designs, and the bezel and case of the GRAVITYMASTER GRB300-8A2 pilot watch utilize that seamless-edge concept. The nonstandard bezel couples with a triple-layer dial to create a 3-D watch face with raised indices. The blue accents on the indices and hands craft an effect like a HUD. Taken altogether, the watch face is a cinch to read, giving you the critical information you need at a glance.

Aviation demands advanced instrumentation, and the G-SHOCK GRAVITYMASTER GRB300-8A2 pilot watch provides it. The GRB300-8A2 sports a dual-time feature, allowing you to keep track of time in two locations. The rotary battery-level indicator at the 9-o’clock position and the mode indicator at the 12-o’clock position grant you the tactical advantage of gleaning information quickly and easily. Bluetooth® connectivity with a smartphone auto-adjusts the time four times a day for impeccable accuracy, and Tough Solar charging ensures this aviation watch is reliable.

A Carbon Core Guard structure outfits the watch with a carbon-fiber resin used in aircraft fuselages, and G-SHOCK shock resistance and 200m water resistance make this the toughest pilot watch in the skies. A Super Illuminator LED light gives you an excellent read no matter the lighting condition. This is an aviation watch that truly continues the legacy of the G-SHOCK Master of G line.

Chart a flightpath over the entire GRB300 series lineup of pilot watches. Bank left and discover the cool black cockpit of the GRB300-1A. Bank right and discover the instrument panel illumination of the GRB300-1A4.

Case size (L× W× H) 59 × 54.7 × 15.7 mm
Weight 71 g
Case and bezel material: Bio-based Carbon / Bio-based resin
Bio-based resin band
Shock Resistant
Carbon Core Guard structure
200-meter water resistance
Time adjustment
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life
Tough Solar (Solar powered)
Smartphone Link feature
Mobile link (Wireless linking using Bluetooth®)
Apps: CASIO WATCHES
App connectivity feature
Auto time adjustment
Easy watch setting
Approximately 300 world time cities
Flight log
Phone finder
Mineral Glass
Screw Lock Crown
Compatible band size 145 to 215 mm
Neobrite
World time
Dual time (Home City time swapping)
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
LED light (Super Illuminator); Afterglow
LED:White
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 (operation period with normal use without exposure to light after charge); 18 months on rechargeable battery (operation period when stored in total darkness with the 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 (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)