How does the world time works? Can it display one zone with the hands and another one with the display? Or is it a zone at a time?

Yes you can display two time zones at once. The hands will always display your selected home time zone and then you can also show any other time zone on the little lcd screen digitally as well. Also very easy to scroll through all time zones on the screen

how long did it take for delivery in the US?

2-3 days if I remember correctly. EMS service is extremely reliable if that’s how shipped.

Does “Japan import” mean it was manufactured - including case - in Japan?

The movement is made in japan but the watch itself is built in thailand.

Casio Watch Gee Shock Carbon Core Guard Ga 2100 1ajf

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🖤 Tough meets trendy — the GA-2100-1AJF is your all-day, every-adventure essential.

GLOBAL SYNC - World time, stopwatch, timer, and calendar keep you ahead in every time zone and deadline.
UNBREAKABLE EDGE - Carbon Core Guard structure fuses strength with sleekness for ultimate durability.
LIGHTWEIGHT POWER - Resin band and carbon bezel deliver rugged style without weighing you down.
TIMELESS PRECISION - Mineral glass and shock resistance ensure your timepiece stays flawless under pressure.
DIVE READY CONFIDENCE - 200-meter water resistance means your watch keeps pace from boardroom to beach.

The Casio G-Shock GA-2100-1AJF combines a carbon core guard structure with shock resistance and 200-meter water resistance, housed in a sleek black resin band and mineral glass case. Designed for durability and precision, it features world time, stopwatch, timer, and calendar functions, making it a versatile, stylish choice for professionals who demand resilience and style.

Reviews

User

Rip off, these watches are £99 at casio

This is an amazing watch but theybare charging rip off prices. This watch is £99 at the Casio website. 10 or 20 £'s more for some of the other colours. If you pay more than this your getting ripped off big time lol

21.10.2020

User

Not JDM

This is not a JDM model. It's a standard G Shock. RRP is £100 on the Casio website.

28.12.2019

User

Perfect everyday watch

I love this watch not too bulk, light, a little classy too everyday watch for sure.

22.11.2025

User

Perfecto

Tras un año de uso, es el reloj que más ocupó y es muy cómodo, el diseño me parece perfecto, casual y deportivo, clásico y futurista.

19.07.2024

User

Good watch

Nice and simple watch. Very practical

6.09.2023

User

Son loves it!!

The G-SHOCK GA-2100 lives up to the hype—tough, lightweight, and stylish without trying too hard. The Carbon Core Guard makes it feel durable but comfortable for all-day wear, and the slim profile is a nice change from bulkier G-SHOCK models. Timekeeping is spot-on, the design looks great with anything, and it can clearly survive more than my daily schedule. If you want a rugged watch that looks clean and modern, this one’s an easy win. ⌚💪 My son loves it! He is 15 and was so excited to open it!

13.12.2025

User

Excelente producto

De lo mejor de Casio G-Shock

2.03.2025

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₩365956

Duties & taxes included

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Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Asin	B07VHSBR4J
Batteries	1 CR2 batteries required. (included)
Best Sellers Rank	23,333 in Men's Wrist Watches
Date First Available	1 Aug. 2019
Department	mens
Item Model Number	GA-2100-1AJF
Manufacturer	Casio
Product Dimensions	24.9 x 4.5 x 1 cm; 51 g

[Casio] watch Gee shock carbon core guard GA-2100-1AJF Men's black

Description

Specifications

Reviews

Common Questions