Casio G-Shock GR-B300-1A
Gray, 59.0 × 54.7 mm, module 5719, solar.
- Japan: GR-B300-1AJF
- Module 5719
- 59.0 × 54.7 mm
- 200 m
- Mineral Glass
- $330
Specifications
- Module
- Casio module 5719, solar powered · how to set it
- Power
- Tough Solar (Solar powered)
- Accuracy
- ±15 seconds per month (with no mobile link function)
- Case size
- 59.0 × 54.7 mm (length × width)
- Thickness
- 15.7 mm
- Case
- Bio-based Carbon / Bio-based resin
- Crystal
- Mineral Glass
- Water resistance
- 200 m
- Weight
- 71 g
- Strap
- Bio-based resin band
- Colour
- Gray
- Features
- Alarm/hourly time signal, Battery display/alert, Calendar, Carbon Core Guard structure, Date display, Day indicator, Energy saving feature, Light, Light color, Run time, Shock Resistant, Stopwatch, Timer, World time
- Released
- 2024-05
- Series
- Casio G-Shock, GR-B300
Questions
What is the Japanese model number of the Casio GR-B300-1A?
Casio's Japanese site names it the GR-B300-1AJF: the same watch, its code with the Japanese market suffix.
What module is in the Casio GR-B300-1A?
Module 5719, a solar powered movement. The module number is engraved on the caseback, and Casio's operation manual is filed under it: the module page links the manual and lists every watch that shares it.
Does the Casio GR-B300-1A need a battery change?
No routine change: it is solar powered and recharges its cell from light. Casio's power spec: Tough Solar (Solar powered).
Does the Casio GR-B300-1A have a sapphire crystal?
No. The GR-B300-1A has a Mineral Glass crystal.
How water resistant is the Casio GR-B300-1A?
200 m (20 bar). That covers swimming, snorkelling and skin diving; it is a certified diver's watch only if the brand says so.