---
product_id: 460913498
title: "G-Shock GA-B2100-1A1DR Black Analog-Digital Dial Black Resin Strap Men's Watch Tough Solar Bluetooth G1242"
brand: "casio"
price: "R$2247"
currency: BRL
in_stock: true
reviews_count: 13
category: "Casio"
url: https://www.desertcart.com.br/products/460913498-g-shock-ga-b2100-1a1dr-black-analog-digital-dial-black
store_origin: BR
region: Brazil
---

# 200m water resistance, adventure-ready Tough Solar power, no battery anxiety 45.4mm sleek carbon-resin case G-Shock GA-B2100-1A1DR Black Analog-Digital Dial Black Resin Strap Men's Watch Tough Solar Bluetooth G1242

**Brand:** casio
**Price:** R$2247
**Availability:** ✅ In Stock

## Summary

> ⚡ Timeless toughness meets smart innovation — never miss a beat!

## Quick Answers

- **What is this?** G-Shock GA-B2100-1A1DR Black Analog-Digital Dial Black Resin Strap Men's Watch Tough Solar Bluetooth G1242 by casio
- **How much does it cost?** R$2247 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/460913498-g-shock-ga-b2100-1a1dr-black-analog-digital-dial-black)

## 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

- • **Tough Solar Power:** Harness sunlight for uninterrupted, eco-friendly energy.
- • **200m Water Resistance:** Dive, swim, or sweat—this watch keeps up with your active lifestyle.
- • **Bluetooth Connectivity:** Seamlessly sync with your smartphone for ultimate control.
- • **Iconic Octagonal Design:** Retro-cool meets modern tech for standout style.
- • **Carbon Core Guard Structure:** Lightweight yet ultra-durable for daily hustle and thrill.

## Overview

The Casio G-Shock GA-B2100-1A1DR blends iconic octagonal design with cutting-edge features like Bluetooth smartphone link and Tough Solar power. Crafted with a carbon-resin case and resin strap, it offers exceptional durability and a lightweight feel. With 200 meters of water resistance and a robust carbon core guard structure, this watch is engineered for professionals who demand style, resilience, and smart functionality in every moment.

## Description

"Upgrade the retro look you love with the octagonal GA-2100 line, which inherits the design concept of the very first G-SHOCK, but now with Smartphone Link and Tough Solar power."

Review: A great pick - The watch itself is a great choice, simple sober yet have a lot of features like world time, solar battery which has long battery life, the size is not too bulky, and the the built quality is tough, the water resistance is also good, and all in total it looks elegant
Review: Awesome stuff! - One of the best purchase that I ever had. Gshocks are always known for its build quality, functionality, design and value for money. I would prefer this over a battery powered smart watch where everytime you get scared if that will run out of charge.

## Features

- Dial Color : Black, Strap Color : Black
- Strap Material : Resin, Clasp Type : Buckle
- Case Material : Carbon::Resin
- Water Resistance : 200
- G-Shock Bluetooth Connect Carbon Core Guard

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B4KGDQG2 |
| ASIN  | B0B4KGDQG2 |
| Age Range Description | Adult |
| Band Colour | Black |
| Band Length | 220 Millimetres |
| Band Material | Resin |
| Band Style1 - Band Style5 | Modern |
| Band Width | 22 Millimetres |
| Batteries  | 1 Lithium Metal batteries required. (included) |
| Best Sellers Rank | #884 in Watches ( See Top 100 in Watches ) #436 in Men's Wrist Watches |
| Brand | Casio |
| Case Diameter | 45.4 Millimetres |
| Case Material1 - Case Material2 | Carbon Fibre |
| Case Shape | Round |
| Case Thickness | 11.9 Millimetres |
| Character | fashion |
| Clasp Type | Double Locking Foldover Clasp |
| Closure Type | Buckle |
| Country of Origin | China |
| Country of Origin  | China |
| Crystal Material | Mineral Glass |
| Customer Reviews | 4.5 4.5 out of 5 stars (424) |
| Date First Available  | 14 July 2022 |
| Department  | Men |
| Dial Colour | Black |
| Display Type | Analog-Digital |
| Embellishment Feature | Crystal |
| Face Style | Sector |
| Generic Name  | Casual Watch |
| Importer  | Imported By - Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 |
| Importer Contact Information | Imported By - Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 |
| Included Components | Casio G-Shock Black Analog-Digital Dial Black Resin Strap Men's Watch |
| Included Components  | Casio G-Shock Black Analog-Digital Dial Black Resin Strap Men's Watch |
| Item Dimensions LxWxH  | 21.5 x 1.2 x 4.5 Centimeters |
| Item Type Name | Casual Watch |
| Item Weight | 52 Grams |
| Item Weight  | 52 g |
| Item model number  | GA-B2100-1A1DR |
| Language  | English |
| Manufacturer | Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044, Imported By - Casio India Co Pvt Ltd |
| Manufacturer  | Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044, Imported By - Casio India Co Pvt Ltd |
| Manufacturer Contact Information | Casio India Co Pvt Ltd, A-41, 1st Floor, MCIE, Mathura Road, New Delhi-110044 |
| Model Name | GA-B2100-1A1DR |
| Model Number | GA-B2100-1A1DR |
| Movement Type | Quartz |
| Net Quantity  | 1 Count |
| Packer  | Casio |
| Packer Contact Information | Casio |
| Pattern | Solid |
| Power Source Type | Solar Powered |
| Product Dimensions  | 21.5 x 1.2 x 4.5 cm; 52 g |
| Series Number | 2100 |
| Sport1 - Sport3 | Walking |
| Strap Type | Two Piece Strap |
| Unit Count | 1 Count |
| Warranty Description | <br> 2 Years Manufacturer warranty from the date of purchase</br> <br>How to avail Warranty?</br> <br>• Register your product on https://register.casio.in/</br> <br>• 6 months additional warranty for products registered online</br> <br>• To claim your warranty, produce original bill copy/invoice at authorized Casio service center (Warranty card & stamp is not mandatory for online purchases)</br> <… |
| Warranty Type | Extended |
| Water Resistance Depth | 200 Metres |
| Water Resistance Level | Water Resistant |

## Images

![G-Shock GA-B2100-1A1DR Black Analog-Digital Dial Black Resin Strap Men's Watch Tough Solar Bluetooth G1242 - Image 1](https://m.media-amazon.com/images/I/61+JJtyeU-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A great pick
*by P***H on 3 January 2026*

The watch itself is a great choice, simple sober yet have a lot of features like world time, solar battery which has long battery life, the size is not too bulky, and the the built quality is tough, the water resistance is also good, and all in total it looks elegant

### ⭐⭐⭐⭐⭐ Awesome stuff!
*by A***Y on 2 November 2025*

One of the best purchase that I ever had. Gshocks are always known for its build quality, functionality, design and value for money. I would prefer this over a battery powered smart watch where everytime you get scared if that will run out of charge.

### ⭐⭐⭐⭐ Upgrade Your Wrist Game with the Futuristic and Durable Casio Analog-Digital Black Dial Men's Watch
*by N***T on 21 March 2023*

Are you tired of constantly digging your phone out of your pocket to check the time and act like its the 90s again? Well, fear not my friend! The Casio Analog-Digital Black Dial Men's Watch-GA-B2100-1A1DR is here to save the day (and your pants pockets). Pros: Unique design: This watch is not your typical boring timepiece. With its rugged and futuristic design, it's sure to turn heads and start conversations. Dual time display: The watch features both analog and digital time displays, making it easy to switch between a classic watch look and a more modern digital readout. Durable and reliable: Casio is known for their quality watches, and this one is no exception. It's built to last, with a tough resin band and shock-resistant design. Cons: Complex functions: While the watch offers a lot of features, they can be a bit complicated to figure out at first. It may take some time to get used to all of the functions and settings. Small digital display: The digital readout on the watch is quite small, which may make it difficult to read for some people, especially in low light conditions. Overall, the Casio Analog-Digital Black Dial Men's Watch-GA-B2100-1A1DR is a great choice for anyone looking for a unique and functional timepiece. While it may take some time to get used to all of the functions, it's worth the effort for the durability and style it provides. So, if you're ready to ditch your phone and upgrade your wrist game, give the Casio Analog-Digital Black Dial Men's Watch-GA-B2100-1A1DR a try. Your pants pockets (and your fashion sense) will thank you.

## Frequently Bought Together

- Casio G-Shock Analog-Digital World Time Watch
- Casio G-Shock Analog-Digital World Time Watch

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**Shop now:** [https://www.desertcart.com.br/products/460913498-g-shock-ga-b2100-1a1dr-black-analog-digital-dial-black](https://www.desertcart.com.br/products/460913498-g-shock-ga-b2100-1a1dr-black-analog-digital-dial-black)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-27*