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GAB2100-2A | Navy Blue Analog-Digital Men's Watch - G-SHOCK | CASIO

2100 Series


My GShock

Upgrade the iconic look you love with the octagonal GA-2100 line, which inherits the design concept of the very first G-SHOCK, but now with Smartphone Link and Tough Solar power.

Clockwise from top right: GAB2100C-9A, GAB2100-2A, GAB2100-3A, GAB2100-1A


Gray GAB2100 on a gray background

Simplicity of design
with octagonal form:
The same sense of size,
with added functionality

While maintaining the iconic octagonal form of the GA2100 inherited from the very first G-SHOCK, the GAB2100 now also has Smartphone Link and Tough Solar power capabilities. It also employs the Carbon Core Guard structure to preserve a similar fit on the wrist as the original model.

Gray GAB2100 straight angle of watch face on a gray background

Dial featuring enhanced
texture as well as
improved functionality

The dual-layer dial construction highlights the dimensionality of the LCD and inset dial. Meticulous attention to detail gives the dial a look of enhanced texture, especially the different surface treatments we apply to the dial face and inset dial.

GA-B2100 set of 4 watches - green, glue, black, and yellow

Homage to the first
color G-SHOCK

We have brought back the classic colors first used in the G-SHOCK 5600 line for the case and band, inspired by the concept of getting back home. The color scheme of the DW5600C also includes accents to the dial. Blue, green, and all-black options offer clean, minimalist color choices.


exploded view of carbon fiber-reinforced resin case

Carbon Core Guard structure, both strong and light

The shock-resistant structure unique to G-SHOCK protects the module, with a carbon fiber-reinforced resin case offering strength, lightness, and excellent weather resistance.

Black GAB2100 analog digital watch with mobile phone behind connoting bluetooth connectivity

Solar-powered timekeeping with Bluetooth® for enhanced accuracy and reliability

close up of GAB2100-1A in dark environment with illuminated super led light show watch face

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

*Image shows the GAB2100-1A.

MR-G Connected

Multiple functions, all at your fingertips

(Smartphone app)

-Time & Place log:
Pressing a button on the watch records the current date, time and position on a map. Useful as an activity log.

-Reminder setting:
The watch will remind you of up to five upcoming events, which you set within the app.

- Automatic time adjustment (four times a day)
- World time for over 300 cities
- Home time/world time switching
- Timer/alarm setting
- Phone finder



  • Shock-resistant structure
  • 20-bar water resistance
  • Tough Solar (solar powered)
  • Smartphone Link
  • Hand shift feature
  • World time (38 cities)
  • 1/100-second stopwatch
  • Countdown timer
  • 5 daily alarms
  • Double LED light (Super Illuminator)

Bluetooth® is a registered trademark of Bluetooth SIG, Inc.

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

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