---
product_id: 691904245
title: "Casio ga-2100-1a2er Watch"
brand: "casio"
price: "€ 196.77"
currency: EUR
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.de/products/691904245-casio-ga-2100-1a2er-watch
store_origin: DE
region: Germany
---

# World Time for global sync 200m Waterproof durability Chronograph & Timer precision Casio ga-2100-1a2er Watch

**Brand:** casio
**Price:** € 196.77
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your wrist game with the G-Shock GA-2100—where style meets unstoppable function!

## Quick Answers

- **What is this?** Casio ga-2100-1a2er Watch by casio
- **How much does it cost?** € 196.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/691904245-casio-ga-2100-1a2er-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

- • **Global Timekeeping Mastery:** Seamlessly switch between world hours with built-in world time feature.
- • **Sleek Octagonal Resin Case:** Modern minimalist design with robust 45mm diameter for standout style.
- • **Rugged 200m Water Resistance:** Dive, swim, or walk in the rain—this watch keeps up with your active lifestyle.
- • **Glow-in-the-Dark & Illuminated Dial:** Never miss a beat—read time clearly in any lighting condition.
- • **Lightweight & Comfortable Blue Strap:** 22cm plastic band with secure buckle closure for all-day wearability.

## Overview

The Casio GA-2100-1A2ER is a fashion-forward, durable sports watch featuring a minimalist black dial within a tough octagonal resin case. Equipped with chronograph, timer, alarm, and world time functions, it offers precision and global connectivity. Its 200-meter water resistance and glow-in-the-dark dial ensure reliability in any environment, while the lightweight blue plastic strap guarantees comfort for daily wear. Perfect for professionals who demand style and performance in one iconic timepiece.

## Description

Casio Sports Watch GA-2100-1A2ER

Review: Love this watch - Great watch. You'll want to Google video instructions on how to set time because the instructions that come with the watch are not awesome. But the watch is cool and durable. The backlight only affects the small digital readout.
Review: Love The Options - Pros: Fits my 7-1/4" (7.25" / 184mm circumference) wrist quite comfortably with plenty of adjustment. I like the octagonal bezel with many different options of color and and dial. I enjoy the various modes it offers. It's nice being able to see UTC time and have timers as well as alarms. Since it's quartz/battery driven, I like not having to wind it or often adjusting the time compared to mechanical watches. Cons: I wish the hour and minute hand had a brighter luminescence but the on board light helps in the dark. It's also difficult to read the screen from 17min to 25min. Even worse from 3:17 to 3:25 when both the hour and minute hand are blocking the LCD screen. Overall: I love the watch. It has its minor issues but it wouldn't deter me.

## Features

- Black / Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09T6P2SS4 |
| Additional Features | Alarm, Chronograph, Glow In The Dark, Timer, World Time |
| Age Range Description | Adult |
| Band Color | Blue |
| Band Length | 22 centimeters |
| Band Material Type | Plastic |
| Band Width | 25 millimeters |
| Bands | 1 |
| Best Sellers Rank | #331,873 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #878 in Men's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 45 millimeters |
| Case Material Type | Resin |
| Case Thickness | 11 millimeters |
| Character | Fashion |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Crystal | Mineral |
| Customer Reviews | 4.3 out of 5 stars 1,171 Reviews |
| Dial Color | Black |
| Display | Analog |
| Embellishment Feature | Crystal |
| Face Style | Minimalist |
| Included Components | 1 x product |
| Item Type Name | Sport Watch |
| Item Weight | 50 g |
| Manufacturer | Casio |
| Manufacturer Part Number | FBP_casio_356 |
| Material | Acrylic |
| Model Name | G-Shock |
| Model Number | a |
| Model Series | G-Shock |
| Number of Items | 1 |
| Pattern | Solid |
| Power Source | Battery Powered |
| Series Number | 2100 |
| Shape | Octagonal |
| Sport Type | Walking |
| Strap Type | Two-piece strap |
| Style Name | GA-2100-1A2ER |
| Theme | Fashion |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 200 meters |
| Water Resistance Level | Waterproof |

## Images

![Casio ga-2100-1a2er Watch - Image 1](https://m.media-amazon.com/images/I/612CRJdsAzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love this watch
*by A***R on June 20, 2026*

Great watch. You'll want to Google video instructions on how to set time because the instructions that come with the watch are not awesome. But the watch is cool and durable. The backlight only affects the small digital readout.

### ⭐⭐⭐⭐⭐ Love The Options
*by J***F on September 19, 2023*

Pros: Fits my 7-1/4" (7.25" / 184mm circumference) wrist quite comfortably with plenty of adjustment. I like the octagonal bezel with many different options of color and and dial. I enjoy the various modes it offers. It's nice being able to see UTC time and have timers as well as alarms. Since it's quartz/battery driven, I like not having to wind it or often adjusting the time compared to mechanical watches. Cons: I wish the hour and minute hand had a brighter luminescence but the on board light helps in the dark. It's also difficult to read the screen from 17min to 25min. Even worse from 3:17 to 3:25 when both the hour and minute hand are blocking the LCD screen. Overall: I love the watch. It has its minor issues but it wouldn't deter me.

### ⭐⭐⭐⭐⭐ Nice Watch
*by N***G on August 3, 2025*

I giving 5 stars because I really like the looks and functionality of the watch. The hour/minute hands glow enough for me to tell the time in the dark. The only thing that needs help is a better light for setting alarms in the dark. If you are an Outdoors person (like me), I suggest using a Mini flashlight and strong teeth when trying to set alarms at night :-) Oh, I also am pleased with this watch band. This one is much softer than most of the rubber/synthetic bands that come with these watches. The first thing I usually do with a new watch is to find a much more comfortable band to fit. Not too easy with Casio G-Shock watches.

## Frequently Bought Together

- Casio Men G-Shock Quartz Watch
- Casio AE1200WH Series | Men’s Digital Watch | 100M WR | Multi Alarms | 100 SEC Stopwatch | Countdown Timer | World Map for World Time | LED Light | LC Analog Display | 10 Year Battery
- Casio G-Shock GWM5610-1 Men's Solar Black Resin Sport Watch

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-10-20*