---
product_id: 151104217
title: "G-Shock Classic GA-2100-1A1ER Digital Watch for Men"
brand: "casio"
price: "156398CFA"
currency: XOF
in_stock: true
category: "Casio"
url: https://www.desertcart.sn/products/151104217-g-shock-classic-ga-2100-1a1er-digital-watch-for-men
store_origin: SN
region: Senegal
---

# 200m water resistance Durable black resin & silicone Stopwatch & timer precision G-Shock Classic GA-2100-1A1ER Digital Watch for Men

**Brand:** casio
**Price:** 156398CFA
**Availability:** ✅ In Stock

## Summary

> 🖤 Timeless toughness meets sleek tech — own the moment, everywhere.

## Quick Answers

- **What is this?** G-Shock Classic GA-2100-1A1ER Digital Watch for Men by casio
- **How much does it cost?** 156398CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/151104217-g-shock-classic-ga-2100-1a1er-digital-watch-for-men)

## 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

- • **All-Day Visibility:** Integrated light feature ensures you never miss a beat, day or night.
- • **Dual Display Mastery:** Seamlessly blends analogue elegance with digital functionality for the modern professional.
- • **Dive-Ready Durability:** 200 metres water resistance means no limits—swim, run, or hike with confidence.
- • **Lightweight Powerhouse:** At just 150g, it’s built for all-day comfort without compromising ruggedness.
- • **Global Time, Local Style:** World time feature keeps you connected across time zones with sleek black-on-black design.

## Overview

The Casio G-Shock GA-2100-1A1ER is a unisex analogue-digital quartz watch featuring a robust 45.40 mm black resin case and silicone strap. Engineered for active professionals, it offers 200 metres of water resistance, stopwatch, timer, alarm, and world time functions, all powered by a reliable lithium manganese dioxide battery. Lightweight yet impact-resistant, this watch balances sporty durability with sophisticated style, perfect for everything from boardroom meetings to outdoor adventures.

## Description

Casio presents the G-Shock GA-2100-1A1ER, an analogue-digital quartz watch designed for men seeking reliable timekeeping with sports functionality. This unisex timepiece features a 45.40 mm black resin case paired with a black silicone strap, creating a cohesive design suitable for casual, formal, hiking, running, swimming activities. The watch combines traditional analogue hands with digital display elements, providing multiple timing functions in one device weighing 150 grams.The GA-2100-1A1ER operates on quartz movement powered by lithium manganese dioxide battery. The watch offers 200 metre water resistance, making it suitable for swimming water sports. Functional features include stopwatch capability, world time display, timer alarm functions with light feature for daytime nighttime commuting use. The resin case material with silicone strap provides impact resistance whilst maintaining durability. Model number GA-2100-1A1ER, part number GA-2100-1A1DR, series 2100.This G-Shock model is part of Casio's sports-themed collection, designed for fitness, running other active uses. The watch serves casual wear, formal wear, hiking, running, swimming purposes for adult men. The black colour scheme 45.40 mm case diameter provide clear visibility of both analogue digital displays. The battery powered design ensures consistent performance across various activities from commuting to sports.

## Features

- Case
- - Case Material: pc, carbon reinforced
- - Case Shape: Round
- - Case Colour: Black
- - Crystal: Mineral crystal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WGJ1JNW |
| ASIN  | B07WGJ1JNW |
| Age Range Description | Adult |
| Band Colour | Black |
| Band Length | 22 Centimetres |
| Band Material Type | Resin |
| Band Width | 25 Millimetres |
| Bands | 1 |
| Batteries  | 1 Lithium Metal batteries required. |
| Best Sellers Rank | 45,198 in Fashion ( See Top 100 in Fashion ) 226 in Men's Wrist Watches |
| Bezel Color | Black |
| Brand Name | Casio |
| Case Diameter | 42 Millimetres |
| Case Material Type | Resin |
| Case Thickness | 11.8 Millimetres |
| Character | No aplica |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Country Of Origin | Italy |
| Country of origin  | Italy |
| Crystal | Mineral |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,380) |
| Customer reviews | 4.6 4.6 out of 5 stars (3,380) |
| Date First Available  | 20 Aug. 2019 |
| Department  | unisex |
| Dial Color | black |
| Display | Analog-Digital |
| Embellishment Feature | Crystal |
| Face Style | Crosshair |
| Global Trade Identification Number | 04549526241659 |
| Included Components | 1 package |
| Is discontinued by manufacturer  | No |
| Item Shape | Round |
| Item Type Name | Watch |
| Item Weight | 50 Grams |
| Item model number  | GA-2100-1A1DR |
| Language  | English |
| Manufacturer | Casio G-Shock |
| Manufacturer  | Casio G-Shock |
| Manufacturer Part Number | GA-2100-1A1ER |
| Model Name | GA-2100-1A1ER |
| Model Number | GA-2100-1A1DR |
| Model Series | 2100 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Power Source | Battery Powered |
| Product Dimensions  | 10 x 10 x 5 cm; 50 g |
| Series Number | 2100 |
| Special Features | Alarm, Light, Stop Watch, Timer, World Time |
| Sport Type | Climbing, Running/jogging |
| Strap Type | Silicone Strap |
| Style Name | GA-2100-1A1ER |
| Theme | Sports |
| Unit Count | 1.00 count |
| Warranty Type | Manufacturer |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 200 Metres |
| Water Resistance Level | Waterproof |

## Images

![G-Shock Classic GA-2100-1A1ER Digital Watch for Men - Image 1](https://m.media-amazon.com/images/I/61g6yHKxg0L.jpg)

## Questions & Answers

**Q: How many alarms has the watch?**
A: I think 5 but not 100%

**Q: Are these genuine? I had  replica sent to me before (different company). Apparently they're rife.**
A: the ones we sell are 100 percent  genuine

**Q: Does this watch change time automatically when clocks go back/forward.**
A: No, you have to change it manually. It’s fairly straightforward to do.

**Q: Does it comes with international warranty card? How long is the warranty? Thanks**
A: Yes

## Frequently Bought Together

- Casio Gents 45.40mm Quartz Watch with Black Analogue - Digital dial and Black Plastic/Resin Strap Strap GA-2100-1A1ER
- Casio GA-2100-1AER G-Shock Carbon Core Octagon Series Watch -Black
- Casio Ga-2100-1a4er Watch One Size

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**Shop now:** [https://www.desertcart.sn/products/151104217-g-shock-classic-ga-2100-1a1er-digital-watch-for-men](https://www.desertcart.sn/products/151104217-g-shock-classic-ga-2100-1a1er-digital-watch-for-men)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-10-05*