Casio G-Shock GBA-900-1A
Black, 51.3 × 48.9 mm, module 5641.
- Japan: GBA-900-1AJF
- Module 5641
- 51.3 × 48.9 mm
- 200 m
- Mineral Glass
- $140
Specifications
- Module
- Casio module 5641, quartz · how to set it
- Power
- Approx. battery life: 2 years on CR2025 · other watches that take CR2025
- Accuracy
- ±15 seconds per month (with no mobile link function)
- Case size
- 51.3 × 48.9 mm (length × width)
- Thickness
- 16.6 mm
- Case
- Resin
- Crystal
- Mineral Glass
- Water resistance
- 200 m
- Weight
- 61 g
- Strap
- Resin Band
- Colour
- Black
- Features
- 12/24-hour format, Airplane mode, Alarm/hourly time signal, Battery display/alert, Calendar, Energy saving feature, Hand shift feature, Light, Light color, Mute feature, Shock Resistant, Stopwatch, Timer, User profile creation, World time
- Released
- 2021-04
- Series
- Casio G-Shock, GBA-900
Questions
What is the Japanese model number of the Casio GBA-900-1A?
Casio's Japanese site names it the GBA-900-1AJF: the same watch, its code with the Japanese market suffix.
What module is in the Casio GBA-900-1A?
Module 5641, a quartz 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.
What battery does the Casio GBA-900-1A take?
CR2025. Casio's figure: Approx. battery life: 2 years on CR2025.
Does the Casio GBA-900-1A have a sapphire crystal?
No. The GBA-900-1A has a Mineral Glass crystal.
How water resistant is the Casio GBA-900-1A?
200 m (20 bar). That covers swimming, snorkelling and skin diving; it is a certified diver's watch only if the brand says so.