Watch Catalog

Casio G-Shock GA-2100-1A

Black, 48.5 × 45.4 mm, module 5611.

  • Japan: GA-2100-1AJF
  • Module 5611
  • 48.5 × 45.4 mm
  • 200 m
  • Mineral Glass

Specifications

Module
Casio module 5611, quartz · how to set it
Power
Approx. battery life: 3 years on SR726W X 2 · other watches that take SR726W x 2
Accuracy
±15 seconds per month
Case size
48.5 × 45.4 mm (length × width)
Thickness
11.8 mm
Case
Carbon / Resin
Crystal
Mineral Glass
Water resistance
200 m
Weight
51 g
Strap
Resin Band
Colour
Black
Features
12/24-hour format, Alarm/hourly time signal, Calendar, Carbon Core Guard structure, Hand shift feature, Light, Light color, Mute feature, Shock Resistant, Stopwatch, Timer, World time
Released
2024-08
Series
Casio G-Shock, GA-2100

Same case, other colours

Identical case, module and dimensions; only the colours or materials differ.

Other watches on the 5611

Every 5611 watch

Questions

What is the Japanese model number of the Casio GA-2100-1A?

Casio's Japanese site names it the GA-2100-1AJF: the same watch, its code with the Japanese market suffix.

What module is in the Casio GA-2100-1A?

Module 5611, 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 GA-2100-1A take?

SR726W x 2. Casio's figure: Approx. battery life: 3 years on SR726W X 2.

Does the Casio GA-2100-1A have a sapphire crystal?

No. The GA-2100-1A has a Mineral Glass crystal.

How water resistant is the Casio GA-2100-1A?

200 m (20 bar). That covers swimming, snorkelling and skin diving; it is a certified diver's watch only if the brand says so.