---
product_id: 409285442
title: "G-Shock Casio Unisex-Adult Quartz Watch, Analog-Digital Display and Plastic Strap GA-2100-1AER"
brand: "g-shock"
price: "¥26309"
currency: JPY
in_stock: true
reviews_count: 5
category: "G Shock"
url: https://www.desertcart.jp/products/409285442-g-shock-casio-unisex-adult-quartz-watch-analog-digital-display
store_origin: JP
region: Japan
---

# 200m water resistance 1/100 sec stopwatch precision Carbon Core Guard shock resistance G-Shock Casio Unisex-Adult Quartz Watch, Analog-Digital Display and Plastic Strap GA-2100-1AER

**Brand:** g-shock
**Price:** ¥26309
**Availability:** ✅ In Stock

## Summary

> 🕶️ Elevate your wrist game with the sleek legend that never quits.

## Quick Answers

- **What is this?** G-Shock Casio Unisex-Adult Quartz Watch, Analog-Digital Display and Plastic Strap GA-2100-1AER by g-shock
- **How much does it cost?** ¥26309 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/409285442-g-shock-casio-unisex-adult-quartz-watch-analog-digital-display)

## Best For

- g-shock enthusiasts

## Why This Product

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

## Key Features

- • **All-Day Versatility:** Lightweight 51g resin strap and 200m water resistance make it perfect from boardroom to weekend adventure.
- • **Slimmest G-Shock Yet:** At just 11.8mm thick, it’s the sleekest analog-digital powerhouse on your wrist.
- • **Unmatched Durability:** Carbon Core Guard case and shock resistance built for the relentless pace of your life.
- • **Iconic Octagonal Bezel:** A bold nod to the original DW-5000C, blending heritage with modern edge.
- • **Dual Super Illuminator LEDs:** Stay effortlessly visible day or night with ultra-bright lighting.

## Overview

The G-Shock GA-2100-1AER is a cutting-edge unisex analog-digital watch featuring a shock-resistant carbon core guard case, ultra-thin 11.8mm profile, 1/100th second stopwatch, countdown timer, 5 alarms, dual LED illumination, and 200 meters of water resistance. Lightweight and stylish, it merges classic G-Shock toughness with modern minimalist design, perfect for professionals who demand durability and style in one.

## Description

The all-new GA-2100 series from G-Shock arrives this year. Like the new GA-2000, the GA-2100 is a Carbon Core Guard model, but unlike other recent carbon models, it has a shock look thanks to its octagonal bezel and its traditional shaped resin bands. The GA-2100 is really inspired by the design and shape of the very first G-Shock DW-5000C, but in a combination of analog and digital forms. At 11.8 millimeters, it's the thinnest G-Shock analog-digital watch on the market.

Review: Perfect everyday watch - I love this watch not too bulk, light, a little classy too everyday watch for sure.
Review: Good watch - Nice and simple watch. Very practical

## Features

- CHRONOGRAPH COMPLICATIONS: 1 / 100th Stopwatch, Countdown

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VHSBR4J |
| Additional Features | Alarm, Light Up, Stopwatch, Timer, Water resistant, With Light |
| Age Range Description | Adult |
| Band Color | Black |
| Band Length | 24 Centimeters |
| Band Material Type | Resin |
| Band Width | 1.18 Centimeters |
| Bands | 1 |
| Best Sellers Rank | #68,782 in Fashion ( See Top 100 in Fashion ) #2,001 in Men's Wrist Watches |
| Brand Name | G-Shock |
| Case Diameter | 45.4 Millimeters |
| Case Material Type | Carbon |
| Case Thickness | 11.8 Millimeters |
| Character | Shock Resistant; World time, 1/100 second stopwatch (24 hour total with split), countdown timer (24 hours), 5 alarms, hourly time signal, dual Super Illuminator LED lights |
| Clasp Type | Foldover Clasp |
| Closure Type | Buckle |
| Crystal | Mineral Glass |
| Customer Reviews | 4.6 out of 5 stars 1,327 Reviews |
| Dial Color | Black |
| Display | Analog Digital |
| Embellishment Feature | Crystal |
| Face Style | Analog-Digital |
| Included Components | Manual |
| Item Weight | 51 Grams |
| Manufacturer | Casio |
| Manufacturer Part Number | GA-2100-1AJF |
| Material | Plastic |
| Model Name | Ga-2100-1ajf |
| Model Number | GA-2100-1AJF |
| Model Series | GA-2100 |
| Number of Items | 1 |
| Pattern | Solid |
| Power Source | Solar Powered |
| Series Number | 2100 |
| Shape | Round |
| Sport Type | Walking |
| Strap Type | Adjustable |
| Style Name | Casual |
| Theme | No Theme |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 200 Meters |
| Water Resistance Level | Water Resistant |

## Images

![G-Shock Casio Unisex-Adult Quartz Watch, Analog-Digital Display and Plastic Strap GA-2100-1AER - Image 1](https://m.media-amazon.com/images/I/41Ap7Csr50L.jpg)

## Questions & Answers

**Q: 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?**
A: 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

**Q: Son originales o réplicas**
A: Son originales por supuesto .

**Q: how long did it take for delivery in the US?**
A: 2-3 days if I remember correctly. EMS service is extremely reliable if that’s how shipped.

**Q: Does “Japan import” mean it was manufactured - including case - in Japan?**
A: The movement is made in japan but the watch itself is built in thailand.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect everyday watch
*by S***N on 22 November 2025*

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

### ⭐⭐⭐⭐⭐ Good watch
*by J***E on 6 September 2023*

Nice and simple watch. Very practical

### ⭐⭐⭐⭐⭐ Son loves it!!
*by B***I on 13 December 2025*

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!

## Frequently Bought Together

- G-SHOCK CASIO Carbon Core Guard Ga-2100-1ajf Mens Japan Import
- GA2100 Metal Watch Band Case Replacement Kit, Stainless Steel Strap Bezel Accessories Compatible with Casio Mens G-Shock GA2100/GA-2110 Watches
- GA2100 Case Band Mod Kit, Stainless Steel Case Bezel Crown Silicone Strap Replacement Accessories Compatible with Men's Watches G-Shock GA-2100/GA-2110/GA-B2100

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-14*