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G-Shock GA-B2100 with Tough Solar power and Bluetooth link

The “CasiOak” gets a major upgrade with Tough Solar and Bluetooth.

G-SHOCK GA-B2100 with Tough Solar and Bluetooth

Casio officially unveiled the G-Shock GA-B2100 series featuring Tough Solar power and Bluetooth smartphone link. Like the GA-2100 on which it is based, the GA-B2100 is a Carbon Core Guard model with a carbon fiber-reinforced interior case. The GA-B2100 is a slimmer G-Shock watch measuring 48.5 x 45.4 x 11.9 millimeters and weighing about 52 grams. It is 0.1 mm thicker and 1 gram heavier than the GA-2100, making it the slimmest solar-powered G-Shock watch available. The series will launch with five models inspired by the classic first colors of early DW-5600 models. Launch models include the black and gray GA-B2100-1A, black and black GA-B2100-1A1, blue GA-B2100-2A, green GA-B2100-3A, and yellow GA-B2100C-9A.

G-Shock GA-B2100-1A Angle

The bestselling GA-2100 series was launched in 2019 and the 2100 series is often informally referred to as the “CasiOak” due to its octagonal bezel’s similarity to the Audemars Piguet Royal Oak watch. This was not an intentional homage on Casio’s part but rather the result of combining the octagonal bezel of the original G-Shock DW-5000 with a round analog display. Although there have been established analog-digital models (like the first-ever analog G-Shock AW-500) that would later get a solar version, it is not something that happens often with recent G-Shock watches. The GA-B2100 series is unprecedented in some ways, as it is the first “GA-B” model and the first “GA-” model with Tough Solar power.

On a full charge, the watch can operate for about seven months with normal use without further exposure to light, or up to eighteen months when stored in darkness with power-saving enabled. Regularly exposing the watch to bright light will provide maintenance-free operation for many years. We suggest keeping Tough Solar watches charged up as much as possible and not letting them go to low often, for the health and longevity of the rechargeable battery. The Bluetooth link provides enhanced features through the Casio smartphone app, such as automatic time adjustment (4 times a day), easy watch setting, approximately 300 world time cities, a time & place memory log function, a reminder function, and the phone finder function. (The watch can also be adjusted and operated without using Bluetooth at all.) One notable difference from the GA-2100 is that the subdial indicator on the GA-B2100 shows the function modes and battery level rather than the day of week. The day of week can be displayed on the LCD display along with the seconds. (The LCD display can also display the date with seconds or the hours and minutes with seconds.)

G-Shock GA-B2100 Case Back

The GA-B2100 series is scheduled for a May 14 release in Japan and a May release in Asia. The tax-included price in Japan is 22,000 yen each or 23,100 yen for the yellow GA-B2100C-9AJF. The series is also expected to be released worldwide, reportedly in June for the U.S. Based on the prices of other recent G-Shock models (like the GBD-200) around the world, the 22,000 yen models will likely be $150 in the U.S. and €149 in Europe.

G-SHOCK GA-B2100 Band

Features: Shock resistance, 200-meter water resistance, world time (38 time zones, 38 cities with UTC, DST on/off or auto switching, home city/world time city swapping), 1/100-second stopwatch (up to 59’59″99, 1-second from 1:00’00” to 23:59’59”, with elapsed time and lap/split time), countdown timer (1 hour max, settable in 1-minute and 1-second increments), 5 daily alarms, hourly time signal, hand shift function, date format setting (date/month swapping), day display language setting (English, Spanish, French, German, Italian, Russian), 12/24-hour format, full auto-calendar, button tone on/off, battery level indicator, power save, and double LED Super Illuminator light with afterglow (1.5 or 3 seconds).

Module: 5689 (instruction manual at casio.com)

G-Shock GA-B2100-1A

Black and gray with standard LCD display, based on the color scheme of DW-5600C-1V from 1987. Japan model is GA-B2100-1AJF (22,000 yen).

G-SHOCK GA-B2100-1A

GA-B2100-1AJF on Amazon GA-B2100-1AJF on eBay

G-SHOCK GA-B2100-1A FACE

G-Shock GA-B2100-1A1

Black and black with inverted LCD display and black resin buckle. Japan model is GA-B2100-1A1JF (22,000 yen).

G-SHOCK GA-B2100-1A1

GA-B2100-1A1JF on Amazon GA-B2100-1A1JF on eBay

G-SHOCK GA-B2100-1A1 FACE

G-Shock GA-B2100-2A

Blue with inverted LCD display, based on the color scheme of DW-5600B-2V from 1987. Japan model is GA-B2100-2AJF (22,000 yen).

G-SHOCK GA-B2100-2A

GA-B2100-2AJF on Amazon GA-B2100-2AJF on eBay

GA-B2100-1A FACE

G-Shock GA-B2100-3A

Green with inverted LCD display, based on the color scheme of DW-5600B-3V from 1987. Japan model is GA-B2100-3AJF (22,000 yen).

G-SHOCK GA-B2100-3A

GA-B2100-3AJF on Amazon GA-B2100-3AJF on eBay

G-SHOCK GA-B2100-3A Face

G-Shock GA-B2100C-9A

Yellow with standard LCD display, black IP buckle, and black band keeper, based on the color scheme of DW-5600C-9BV from 1987. Japan model is GA-B2100-9AJF (23,100 yen).

G-SHOCK GA-B2100C-9A

GA-B2100-9AJF on Amazon GA-B2100-9AJF on eBay

G-SHOCK GA-B2100C-9A FACE

G-Shock GA-B2100 Promo Video from Casio UK:

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Disclosure: G-Central is independently managed by fans and is not an official G-Shock site. For official support, visit world.casio.com. Please follow your region's official site for more release information. All articles are written by G-Central. We may earn a commission on purchases from our links to Amazon, eBay, and Reeds Jewelers.

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Adel
Adel
1 month ago

Finally a version with tough solar and positive display. nice!

E. Long
E. Long
1 month ago

TOUGH SOLAR! YES!

Joao
Joao
1 month ago

Not even mad that they don’t have power save, auto backlight, portuguese for the date and we have to pick between day or date, if these come at 120 to 150 euro, they are awesome!!

John
John
1 month ago
Reply to  G-Central

But when in Germany?

George
George
1 month ago
Reply to  Joao

It also has a 60min timer instead of 24h.. G-shock always do those kind of omissions. They leave something to be desired… It’s good that the price is reasonable and the looks are awesome!!

Victor
Victor
1 month ago

Is it you GST-B500?? Where did you leave your steel?

James
James
1 month ago

Am I the only one that think Bluetooth on this model is a negative??

Krieg
Krieg
1 month ago
Reply to  James

Nope, would rather see atomic time keeping vs bluetooth.

watyslop62
watyslop62
1 month ago
Reply to  James

I also don’t like the fact that Bluetooth is on board. Is this radio always active on such G-Shock devices with Bluetooth or can you turn it off?

I like it when a watch is self-sufficient and no connection to the cell phone.

watyslop62
watyslop62
1 month ago

Hello G-Central folks, is Bluetooth becoming more and more common? It feels like every new G-Shock or Casio watch that comes out is equipped with Bluetooth instead of aligning with an atomic watch.

Do you see it similarly or is it just a current trend?

Andrew Brodsky
Andrew Brodsky
1 month ago

I am holding out for the metal versions.

Tony Gunk
Tony Gunk
3 days ago

UPDATE: UK Orders have started shipping! (I ordered Yellow)