---
product_id: 415007664
title: "G-Shock Quartz Watch with Analogue Digital Display, Blue Resin Case, Plastic Strap, 200 Metres Waterproof Rating, Long Battery Life, Model GA-2100-1A2ER"
brand: "casio"
price: "¥34638"
currency: JPY
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.jp/products/415007664-g-shock-quartz-watch-with-analogue-digital-display-blue-resin
store_origin: JP
region: Japan
---

# 200m waterproof depth long-lasting lithium battery precise quartz movement G-Shock Quartz Watch with Analogue Digital Display, Blue Resin Case, Plastic Strap, 200 Metres Waterproof Rating, Long Battery Life, Model GA-2100-1A2ER

**Brand:** casio
**Price:** ¥34638
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your wrist game with the ultimate blend of style, strength, and smarts!

## Quick Answers

- **What is this?** G-Shock Quartz Watch with Analogue Digital Display, Blue Resin Case, Plastic Strap, 200 Metres Waterproof Rating, Long Battery Life, Model GA-2100-1A2ER by casio
- **How much does it cost?** ¥34638 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/415007664-g-shock-quartz-watch-with-analogue-digital-display-blue-resin)

## 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

- • **Power That Lasts:** Lithium battery ensures you stay on time with minimal replacements—focus on your hustle, not your watch.
- • **Dual Display Dynamism:** Analogue meets digital for versatile timekeeping that fits every setting, from boardroom to backcountry.
- • **Iconic G-Shock Durability:** Join the elite who trust G-Shock’s legendary toughness—fashion meets function for the modern professional.
- • **Unstoppable Water Warrior:** Dive deep with 200m water resistance—swim, surf, or dive without a second thought.
- • **Lightweight Everyday Armor:** At just 51 grams, this resilient resin and plastic build keeps you comfortable while conquering your day.

## Overview

The Casio G-Shock GA-2100-1A2ER is a lightweight, durable analogue-digital watch featuring a blue resin case and plastic strap. Powered by a long-life lithium battery and precise quartz movement, it offers 200 metres of water resistance, making it perfect for active professionals who demand reliability and style in any environment.

## Description

Casio presents the G-Shock GA-2100-1A2ER, a watch designed for adult wearers including men, women or older adults. This timepiece features an analogue display with digital display capability housed in a resin case. The watch utilises quartz movement technology to maintain accurate timekeeping. Part of the renowned G-Shock collection series number 2100, this model offers practical functionality with long battery life that reduces the frequency of battery replacements. The watch is constructed with a resin case material featuring a blue colour scheme, complemented by a plastic strap. It includes a lithium battery as the power source. The timepiece weighs 0.16 kilogrammes, providing lightweight wear throughout the day. Water resistance is rated to 200 metres depth with a waterproof classification, making it suitable for swimming or diving activities in various water conditions. The analogue display presents time information clearly, whilst the digital display adds functional capability. This model is designed for use in home, office or outdoor environments. The watch is suitable for casual wear or formal wear occasions, accommodating different style requirements. Battery powered operation ensures reliable timekeeping without external charging needs. The part number GA-2100-1A2ER identifies this specific variant within the G-Shock range. This timepiece combines analogue with digital functionality for dual time display options across different activities. adult

Review: G Shock watches are great - I bought this watch to replace another G Shock which I’d for well over 20 years, I smashed the casing beyond repair when I caught it on a door frame. Before that I had a G Shock that was stolen when I took it off a laid it beside me in an Alpine mountain hut. Throughout the years I had that 2nd watch it had some serious knocks that would have seen off many other watches. I’m delighted with my new G Shock and trust that it gives me the service of its predecessors. G Shock watches are just great for anyone who leads an active life and are great value for money, why pay our big money for an Omega or Rolex when a G Shock gives you function over fashion.
Review: Amazing product - Amazing product

## Features

- Materials: Resin case construction with plastic strap, lithium battery power source, weighs 0.16 kilogrammes for everyday wearability throughout daily activities
- Design Features: Analogue display type with digital display capability, blue colour scheme, part of the G-Shock collection, series 2100, model number GA-2100-1A2ER
- Functionality: Quartz movement mechanism provides accurate timekeeping, long battery life reduces replacement frequency, suitable for home, office, outdoor environments
- Specifications: Series number 2100, water resistance depth of 200 metres, waterproof rating suitable for swimming, diving activities in various water conditions
- Care Instructions: Battery powered operation with lithium battery included, designed for adult wearers, suitable for casual wear, formal wear occasions, men, women

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09T6P2SS4 |
| Age Range Description | Adult |
| Band Colour | Blue |
| Band Length | 22 Centimetres |
| Band Material Type | Plastic |
| Band Width | 25 Millimetres |
| Bands | 1 |
| Best Sellers Rank | 18,984 in Fashion ( See Top 100 in Fashion ) 75 in Men's Wrist Watches |
| Bezel Color | Blue |
| Brand Name | Casio |
| Case Diameter | 45 Millimetres |
| Case Material Type | Plastic |
| Case Thickness | 11.8 Millimetres |
| Character | No aplica |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Country Of Origin | Japan |
| Country of origin | Japan |
| Crystal | Glass |
| Customer Reviews | 4.3 out of 5 stars 1,135 Reviews |
| Dial Color | Blue |
| Display | Analog |
| Embellishment Feature | Crystal |
| Face Style | Analog-Digital |
| Included Components | 1 package |
| Item Shape | Octagonal |
| Item Type Name | Watch |
| Item Weight | 51 Grams |
| Manufacturer | Casio |
| Manufacturer Part Number | GA-2100-1A2ER |
| Material | Acrylic |
| Model Name | GA-2100-1A2ER |
| Model Number | GA-2100-1A2ER |
| Pattern | Solid |
| Power Source | Battery Powered |
| Series Number | 2100 |
| Special Features | Long battery life, Digital display |
| Sport Type | Walking |
| Strap Type | Plasticstrap |
| Style Name | GA-2100-1A2ER-AMZUK |
| Theme | Fashion |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 200 Metres |
| Water Resistance Level | Water Resistant |

## Images

![G-Shock Quartz Watch with Analogue Digital Display, Blue Resin Case, Plastic Strap, 200 Metres Waterproof Rating, Long Battery Life, Model GA-2100-1A2ER - Image 1](https://m.media-amazon.com/images/I/612CRJdsAzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ G Shock watches are great
*by C***S on 7 April 2026*

I bought this watch to replace another G Shock which I’d for well over 20 years, I smashed the casing beyond repair when I caught it on a door frame. Before that I had a G Shock that was stolen when I took it off a laid it beside me in an Alpine mountain hut. Throughout the years I had that 2nd watch it had some serious knocks that would have seen off many other watches. I’m delighted with my new G Shock and trust that it gives me the service of its predecessors. G Shock watches are just great for anyone who leads an active life and are great value for money, why pay our big money for an Omega or Rolex when a G Shock gives you function over fashion.

### ⭐⭐⭐⭐⭐ Amazing product
*by A***H on 3 March 2026*

Amazing product

### ⭐⭐⭐⭐⭐ G shock watch
*by S***E on 16 February 2026*

Grand son loved it. It lights up beautifully

## 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 Japan*
*Store origin: JP*
*Last updated: 2026-07-08*