Casio GR-B300RY-1A9ER

Watch with gemstone, Chronograph, 59 mm
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Product details

The G-SHOCK GR-B300RY-1A9ER is a highly advanced wristwatch from the "Master of G" series, specifically designed for extreme conditions. This watch combines durability and functionality in a striking design that is suitable for both professionals and adventurers. The deep black carbon case and bright yellow strap not only provide a bold appearance but also ensure high visibility in critical situations. The aerodynamic shape of the watch is inspired by modern aircraft, offering a perfect balance between style and practical use. With features like a dual time display, a special flight log function, and Bluetooth technology that allows connection to smartphones, the GR-B300RY-1A9ER is ideal for frequent travelers and aviation enthusiasts. Additionally, the Tough Solar technology ensures that the watch is environmentally friendly and reliable, while the high water resistance of up to 200 meters provides extra security.

  • Carbon Core Guard structure for increased durability
  • Dual time display for simultaneous reading of two time zones
  • Special flight log function for recording traveled distances
  • Bluetooth technology for wireless connection with smartphones
  • Tough Solar technology for eco-friendly operation.

Key specifications

Clockwork
Quartz
Watch type
ChronographWatch with gemstone
Waterproof
up to 200 m
Strap fastener
Buckle
Target group
Men
Item number
56581827

General information

Manufacturer
Casio
Category
Wristwatches
Manufacturer no.
GR-B300RY-1A9ER
Release date
12.2.2025
Sales rank in Category Wristwatches
348 of 15486

Colour

Colour
Yellow

Target group

Target group
Men

Watch properties

Watch type
ChronographWatch with gemstone
Clockwork
Quartz

Wristwatch functions

Time functions
12/24h display24h displayAlarmTimer
Calendar
Date displayWeekday display
Data transmission
Bluetooth

Display + Watch face

Watch face colour
Black

Wristband properties

Wristband colour
Yellow
Wristband material
Resin
Strap fastener
Buckle

Case properties

Case colour
Black
Case material
Carboniferous
Glass
Mineral glass
Case diameter
59 mm
Case thickness
15.70 mm
Shape of watch
Round

Durability

Waterproof
up to 200 m

Origin

Country of origin
Thailand

Voluntary climate contribution

CO₂-Emission
Climate contribution

Product dimensions

Weight
71 g

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Wristwatches» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 3.Guess
    0.6 %
  • 3.Kids Licensing
    0.6 %
  • 6.Casio
    0.7 %
  • 7.Casio Vintage
    0.8 %
  • 7.G-Shock
    0.8 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Bering
    0 days
  • 1.Casio
    0 days
  • 1.Casio Vintage
    0 days
  • 1.Cool Time Kids
    0 days
  • 1.Disney
    0 days

Return rate

How often is a product of this brand in the «Wristwatches» category returned?

Source: Digitec Galaxus
  • 8.Lorus
    4.1 %
  • 9.Calypso
    4.2 %
  • 10.Casio
    4.3 %
  • 11.ICE Watch
    4.8 %
  • 12.M Watch Mondaine
    4.9 %
Source: Digitec Galaxus