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MASTER OF G
GRAVITYMASTER

GR-B300RY-1A9

My GShock

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 GR-B300RY 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 travelled, and more. This tough watch delivers what you need to make quick decisions and take decisive action in the harshest of environments.

  • From left:GR-B300RY-1A9, GPR-H1000RY-1A9, GW-9500MRY-1A9
  • Cutting-edge design imbued with functional beauty
  • LED light
  • Solar-powered timekeeping with Bluetooth® connectivity

Specifications

FEATURES

Eye-catching contrast: Vibrant rescue yellow

Vivid yellow is featured prominently in the watch designs as a key color. Employed on equipment and vehicles used by rescue teams, the striking hue serves as a caution color that powerfully projects its presence amid adverse weather conditions, poor visibility, and other demanding environments. Rescue yellow accents on parts including the band and bezel’s top create a high-impact look. Black and gray IP gives enhanced textural appeal to metal components to realize toughness-driven design fitting for professional gear.

Close-up of the black and yellow Master of G Rangeman GPR-H1000RY-1A9, in the background: a firefighter from behind

Cutting-edge design imbued with functional beauty
GRAVITYMASTER
GR-B300RY

Features including the Carbon Core Guard structure and the wide 3D face deliver the durability and readability required for a specialized pilot’s watch. Enjoy all the practical functions as well, including dual-time simultaneously displaying the time in two cities, a flight log memory function for recording routes travelled and more.

*Second image shows the GR-B300-1A.


DETAILS

Carbon Core Guard structure, both strong and light

GR-B300RY, GW-9500MRY

A carbon fibre-reinforced resin case protects the module, making the most of the high degree of strength and outstanding durability delivered by the carbon material to achieve a size ensuring a comfortable fit.

*Image shows the GR-B300RY-1A9.

Detailed view of the carbon fibre-reinforced synthetic resin case

Attention to materials: Bio-based resin

Key resin components used in the case, bezel, band, and more are made with bio-based resin, which is produced using renewable organic resources and is expected to help reduce environmental impact.

* Image is included for illustrative purposes only.

A heap of transparent resin granulate

Solar-powered timekeeping with Bluetooth® connectivity and/or radio control for enhanced accuracy and reliability

GR-B300RY: Bluetooth®
GW-9500MRY: Radio control
GPR-H1000RY: USB charging + solar-assisted charging

*Image shows the GR-B300RY-1A9.

The Gravitymaster GR-B300RY-1A9 Bluetooth® watch in front of a smartphone displaying information about the watch

Super Illuminator (high-brightness LED light) for maintaining watch readability in the dark

GR-B300RY: Dial
GW-9500MRY, GPR-H1000RY: LCD (Full-auto light)

*Images show the GW-9500MRY-1A9 (second image) and the GPR-H1000RY-1A9 (third image).

*The colour tone of the listed products may differ from the actual product in some cases.

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