GR-B300RY-1A9CR

MASTER OF G-AIR
GRAVITY MASTER

Whatever you’re doing, wherever you are — the G-SHOCK Master of G line has your back.

For total support in the harshest environments, this GRAVITYMASTER watch delivers peak performance in punishing conditions in air. It features bold black to exude toughness and a band in the same bright yellow used for emergency rescues and safety signs. This innovative design is a sure fit for the world of professionals involved in rescue efforts and other critical missions.

The organic form of the GRAVITYMASTER GRB300RY is inspired by next-generation aircraft and rendered with a seamless exterior design. The Carbon Core Guard structure and wide 3D face deliver durability, readability, and a comfortable fit. Enjoy all the practical functions as well, including dual-time simultaneously showing the time in two cities, a flight log memory function for recording routes traveled, and more.

This tough watch delivers what you need to make quick decisions and take decisive action in the harshest of environments.

BASIC INFORMATION

Case size (L× W× H) icon-question 59 × 54.7 × 15.7 mm

Weight 71g

Case and bezel material Bio-based Carbon / Bio-based resin / Stainless steel

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

Power supply and battery life: Tough Solar (Solar powered)

SMARTPHONE LINK/APP CONNECTIVITY FEATURES

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

EXTERIOR

Glass Mineral

Crown Screw Lock Crown

Surface Treatment: Black ion plated bezel

Compatible band size 145 to 215 mm

Other Neobrite

WATCH FEATURES

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 backlight (Super Illuminator)
• Afterglow

Light color LED:White

Calendar Full auto-calendar (to year 2099)

Energy saving feature Power Saving (Turns off the display 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 full 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 time keeping:
• Analog
  • 3 hands (hour, minute (hand moves every 10 seconds), second)
  • 3 dials (dual time hour and minute, dual time 24-hour, day)

 *This item is BRAND NEW and will come with the original box and papers. We are authorized CASIO dealers, which means you will receive the manufacturer's warranty with your purchase.