---
product_id: 158899224
title: "Casio GA-2100-4AER Mens G-Shock Watch"
brand: "casio"
price: "$203.09"
currency: USD
in_stock: true
reviews_count: 13
url: https://www.desertcart.us/products/158899224-casio-ga-2100-4aer-mens-g-shock-watch
store_origin: US
region: United States of America
---

# Worldtime for global connectivity 20-bar water resistance Multi-function stopwatch & timer Casio GA-2100-4AER Mens G-Shock Watch

**Brand:** casio
**Price:** $203.09
**Availability:** ✅ In Stock

## Summary

> 🔥 Own the moment with the Casio GA-2100-4AER – where style meets unstoppable function!

## Quick Answers

- **What is this?** Casio GA-2100-4AER Mens G-Shock Watch by casio
- **How much does it cost?** $203.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/158899224-casio-ga-2100-4aer-mens-g-shock-watch)

## Best For

- casio enthusiasts

## Why This Product

- Trusted casio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek Red Powerhouse:** Stand out with a bold 43mm red dial and matching strap that screams confidence.
- • **All-in-One Timekeeper:** Calendar, stopwatch, alarm, and timer functions keep your schedule sharp and on point.
- • **Global Time, Local Style:** Stay effortlessly synced with worldtime across 31 time zones—perfect for the jet-setting professional.
- • **Lightweight Everyday Armor:** At just 50 grams, it’s the perfect balance of durability and comfort for all-day wear.
- • **Built to Brave the Elements:** 20-bar water resistance means this watch keeps pace rain or shine, poolside or boardroom.

## Overview

The Casio GA-2100-4AER is a modern, sporty men’s watch featuring a striking red 43mm dial and durable plastic strap. Equipped with essential functions like day-date calendar, stopwatch, worldtime, timer, alarm, and LED light, it offers versatile timekeeping for the dynamic professional. Water resistant up to 20 bars and weighing only 50 grams, it combines rugged durability with lightweight comfort, all delivered in an original gift box.

## Description

Stylish- Sporty and a modern design, very suitable for Men -The watch has a calendar function: Day-Date, Stop Watch, Worldtime, Timer, Alarm, Light.Casio Computer Co., Ltd. is a Japanese multinational consumer electronics and commercial electronics manufacturing company headquartered in Shibuya, Tokyo, Japan. Its products include calculators, mobile phones, digital cameras, electronic musical instruments, and analogue and digital watches.

## Features

- Stylish- Sporty and a modern design, very suitable for Men -The watch has a calendar function: Day-Date, Stop Watch, Worldtime, Timer, Alarm, Light
- High quality 21 cm length, 22 mm wide, Red Plastic strap with a Buckle
- Case diameter: 43 mm, Case height: 11 mm and Case color: Red Dial color: Red
- Water resistant: 20 bars- Weight: 50 grams
- The watch is delivered in an original gift box

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B07WGJ14VR |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | 2,458 in Men's Wrist Watches |
| Date First Available | 20 Aug. 2019 |
| Department | Men's |
| Is Discontinued By Manufacturer | No |
| Item Model Number | GA-2100-4AER |
| Manufacturer | Casio |

## Images

![Casio GA-2100-4AER Mens G-Shock Watch - Image 1](https://m.media-amazon.com/images/I/71iFbkpHuiL.jpg)

## Questions & Answers

**Q: Is this a genuine Casio as I cannot find it in their store, and does it come with dealer stamp on warranty?**
A: BE THE WATCH IS ORIGINAL CASIO AND IS DELIVERED WITH THE WARRANTY STAMPED BY US WHO ARE OFFICIAL RETAILERS

**Q: Hello i would like to buy a red g-shock for £76.86 can you tell me who i will be buying this watch off of will it be directly from amazon thank you**
A: Amazon EU.  
Bargain price and an excellent service supplied by Amazon EU.
It takes a little longer to arrive but worth the wait and a stunning watch.
By with confidence 

I hope this helps 

Regards

**Q: Does this watch come with a warranty**
A: Yes, it must come with a guarantee

**Q: what is the battery life**
A: Bought the watch in March 2021 and its still working perfectly with the original battery.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love it
*by  on Reviewed in the United Kingdom 30 July 2026*

Lovely watch and outstanding colour,brought for a Liverpool fan

### ⭐⭐⭐⭐⭐ Nice watch!
*by  on Reviewed in the United Kingdom 8 September 2023*

Yes, I love this watch and having a splash of colour on me, to show I'm not grey inside, I am strong and red is a colour associated with sexuality often.I hesitated writing a review because I may not want other men wearing the same watch as me, but hey ho, we are all competing and may the best one win, that if women weren't going for the most expensive watches.Not easy to read the small display in the gym, but not too hard either if there light right above. Easy to count my time between exercises, set it to 1' 30" or 3 mins and beep at the end.Casual wearing is also great for contrast and colour, jeans, shorts etc.Got some compliments also from close acquaintances, but I'm wearing a fkn red watch, I'm not after their compliments!

### ⭐⭐⭐⭐⭐ Great unisex watch
*by  on Reviewed in the United Kingdom 26 December 2025*

Looks great

## Frequently Bought Together

- Casio Men Analogue-Digital Quartz Watch with Plastic Strap GA-2100-4AER
- Casio Men Analogue-Digital Quartz Watch with Plastic Strap GA-B2100C-9AER
- Casio Men Analogue-Digital Quarz Watch with Plastic Strap GA-2100-2A2ER

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-19*