Description

Not Just a Pilot Watch, a GRAVITYMASTER. G-SHOCK GRB300-1A.

Glancing at your G-SHOCK GRAVITYMASTER pilot watch, you see you left your departure city an hour ago, and the dual time indicates your arrival city is five hours ahead--plenty of time to work through your next maneuver. The large numerals “6” and “12” and the 3-D indices on the face of the G-SHOCK GRB300-1A pilot watch were designed for quick readability, making the glance you gave your watch all that was needed to maximize your focus and attention during flight.

The mode dial at the top of the watch face makes it easy to distinguish which function your pilot watch is performing. Timekeeping mode is on the right side of the dial and displays the day of the week, Sunday through Saturday. In Stopwatch, Timer, or Alarm mode, the hand points to mode abbreviation indices. The bezel design is modeled after next-generation aircraft with a seamless edge, and the triple-layer dial construction creates a wide 3-D face that makes this pilot watch a cinch to read. The rotary battery-level indicator on the 9-o’clock side of the face beautifully incorporates every detail into the cockpit design scheme of this pilot watch. Design is key to aviation superiority, and the black GRAVITYMASTER GRB300-1A pilot watch is designed to mirror the smooth instrument reading of a cockpit.

Built to withstand all the rigors of flight, the G-SHOCK GRAVITYMASTER GRB300-1A is crafted with a layered construction with a Carbon Core Guard structure leveraging the special properties of a carbon material also used in aircraft fuselages. Tested and proven G-SHOCK shock resistance and 200m water resistance (wr 20 bar) ensure the flight readiness of this aviation watch. The Super Illuminator LED light ensures excellent readability no matter the lighting condition, and Bluetooth® connectivity allows recording of flight log data such as location latitude and longitude, date, and time. That flight log data can then be displayed on a map on your smartphone using the Casio Watches app.

Case size (L× W× H)
59 × 54.7 × 15.7 mm
Weight
71 g
Case and 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
Time adjustment
Bluetooth: Connects to a smartphone and automatically adjusts the time

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

Glass
Mineral Glass
Crown
Screw Lock Crown
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 (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
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)

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Warranty Information

The G-Shock Warranty Timepiece Warranty - Limited Warranty This product, except consumables or articles with limited resistance (e.g. battery, band, case), is warranted to the original purchaser to be free from defects of quality at the time of delivery for a period of one year from the date of purchase ("warranty period"). During the warranty period, and upon proof of purchase, the product will be repaired using CASIO reconditioned replacement parts or the product will be replaced with the same or a similar reconditioned replacement model within a reasonable period of time. To obtain these warranty services, please take or send the product, postage paid, with a copy of your sales receipt or other proof of purchase that shows the date of purchase, to a CASIO Service Center or the store where purchased. There will be no parts or labor charge to you for valid warranty services. Due to the possibility of damage or loss during shipping, it is recommended when sending the product for service that you package the product securely and send it insured, return receipt requested. The customer shall NOT have any claim under this warranty for repair or adjustment expenses if: The problem is caused by improper, rough or careless treatment; The problem is caused by a fire or other natural calamity; The problem is caused by improper repair or adjustment made by anyone other than a CASIO service center; The case, band, glass or battery is damaged or worn; The proof of purchase is not presented when requesting service; or The warranty period has expired. NEITHER THIS WARRANTY NOR ANY OTHER WARRANTY OR GUARANTEE, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE, SHALL EXTEND BEYOND THE WARRANTY PERIOD. NO RESPONSIBILITY IS ASSUMED FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING, WITHOUT LIMITATION, DAMAGES RESULTING FROM INACCURACY OR MATHEMATICAL INACCURACY OF THE PRODUCT OR LOSS OF STORED DATA. SOME STATES OR JURISDICTIONS DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS AND SOME STATES OR JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, OR THE EXCLUSION OR LIMITATION BY A PARTY OF LIABILITY FOR DEATH OR PERSONAL INJURY CAUSED BY THAT PARTY'S NEGLIGENCE. SO THE ABOVE LIMITATIONS OR EXCLUSIONS SHALL NOT IN SUCH CASES APPLY. THIS WARRANTY GIVES YOU SPECIFIC RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE, JURISDICTION TO JURISDICTION, OR COUNTRY TO COUNTRY. NOTHING IN THIS WARRANTY AFFECTS YOUR STATUTORY RIGHTS. THANK YOU FOR CHOOSING CASIO.

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