

⏳ Own time like a boss with G-Shock’s unstoppable style.
The Casio G-Shock GA-2100-1A4ER is a 45mm analog-digital quartz watch featuring a shock-resistant resin case with carbon core, fluorescent orange hands, and a scratch-resistant mineral glass. It offers stopwatch, countdown timer, world time across 29 zones, daily alarms, and a day-date calendar. Water resistant up to 20 Bar (200m), it’s built for durability and precision, powered by a lithium battery lasting approximately 3 years.
| ASIN | B09T6QZCS3 |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | 57,461 in Fashion ( See Top 100 in Fashion ) 307 in Men's Wrist Watches |
| Country of origin | China |
| Customer reviews | 4.4 4.4 out of 5 stars (775) |
| Date First Available | 23 Feb. 2022 |
| Department | Men's |
| Is discontinued by manufacturer | No |
| Item model number | GA-2100-1A4ER |
| Manufacturer | Casio |
| Product Dimensions | 40 x 47 x 23 cm; 51 g |
J**M
Great watch
It’s a great watch god value
G**.
Really lovely and good for the price
So nice my partner so loved it
A**R
Good first watch
Bought for my 11 Yr old, seems pretty rugged. The settings are pretty easy to use. No complaints from them so far. I like the combination of analogue and digital. Have to see how long the battery lasts
J**F
Just the job
I like it and that's why it's got 5 stars from me. If you like G-Shocks then you know what you want otherwise don't buy one as it's really just a watch! Tough as nails and keeps working all day, unlike me..
Z**A
Great watch
For a G Shock it's a slim watch and looks good. The red is not as bright as it looks in the pictures. Same old Casio g shock rigmarole to set the time. That can be annoying to a new user. To be quite honest the digital read out is useless because of the size. The packaging is a cardboard box not the tin of old. All in all it's a decent casioaks watch.
C**S
Horrible dark watch
Casio make a lot of G-Shocks including this one Ga-2100. Mostly known as the Casioaks (don’t know why), they have a good reputation for 200m water resistance, stopwatch, countdown timer, world clock and an incredible backlight. This one however is too dark to really see the digital display because it’s what they call a negative display. Why did I buy it? So I could strip out the insides and put a decent movement inside. The Casio AQ-S800 which is a better watch because it’s solar powered and you can see the face too.
L**G
Fake.
Fake watch.
T**N
Can't beat a g shock watch
Excellent g shock watch ⌚️
Trustpilot
2 weeks ago
2 months ago