---
product_id: 691904245
title: "ga-2100-1a2er Watch"
brand: "casio"
price: "₩276545"
currency: KRW
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.kr/products/691904245-ga-2100-1a2er-watch
store_origin: KR
region: South Korea
---

# Luminescent hands for night visibility Sleek black octagonal bezel design Quartz precision timekeeping ga-2100-1a2er Watch

**Brand:** casio
**Price:** ₩276545
**Availability:** ✅ In Stock

## Summary

> 🖤 Timeless style, precision performance — own the moment.

## Quick Answers

- **What is this?** ga-2100-1a2er Watch by casio
- **How much does it cost?** ₩276545 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/691904245-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

- • **Comfort That Lasts:** Soft, flexible band designed for all-day wear without irritation.
- • **Versatile Time Modes:** Access UTC, timers, and alarms seamlessly for your dynamic lifestyle.
- • **Iconic Octagonal Style:** Stand out with the modern, minimalist black bezel that’s a true conversation starter.
- • **Night-Ready Visibility:** Glowing hour and minute hands ensure you never miss a beat after dark.
- • **Precision Meets Durability:** Quartz battery-powered for reliable, low-maintenance timekeeping.

## Overview

The Casio GA-2100-1A2ER is a sleek, black sports watch featuring quartz battery precision, luminescent hands for night readability, and a soft, comfortable band. Designed for professionals and outdoor enthusiasts alike, it offers multiple time modes including UTC, timers, and alarms, all wrapped in a distinctive octagonal bezel. Durable and stylish, it’s a top choice for those who demand function and fashion in one.

## Description

Casio Sports Watch GA-2100-1A2ER

Review: Nice Watch - 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.
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 |
| Batteries  | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | #160,763 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #505 in Men's Wrist Watches |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,043) |
| Date First Available  | April 28, 2022 |
| Department  | mens |
| Is Discontinued By Manufacturer  | No |
| Item model number  | GA-2100-1A2ER |
| Manufacturer  | Casio |

## Images

![ga-2100-1a2er Watch - Image 1](https://m.media-amazon.com/images/I/51aM1pcS-gL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Casio
*by D***S on December 13, 2025*

Excellent.

## 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 South Korea*
*Store origin: KR*
*Last updated: 2026-02-22*