---
product_id: 326895700
title: "Casio Men's 'G-Steel by G-Shock' Quartz Solar Bluetooth Connected Resin Dress Watch, Color: Black (Model: GST-B100-1ACR)"
brand: "casio"
price: "R12348"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Casio"
url: https://www.desertcart.co.za/products/326895700-casio-mens-g-steel-by-g-shock-quartz-solar-bluetooth
store_origin: ZA
region: South Africa
---

# Dual world time + Bluetooth smartphone sync 200m water & shock resistant toughness Robust solar battery with level indicator Casio Men's 'G-Steel by G-Shock' Quartz Solar Bluetooth Connected Resin Dress Watch, Color: Black (Model: GST-B100-1ACR)

**Brand:** casio
**Price:** R12348
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your wrist game with G-Steel’s unstoppable tech & style fusion!

## Quick Answers

- **What is this?** Casio Men's 'G-Steel by G-Shock' Quartz Solar Bluetooth Connected Resin Dress Watch, Color: Black (Model: GST-B100-1ACR) by casio
- **How much does it cost?** R12348 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/326895700-casio-mens-g-steel-by-g-shock-quartz-solar-bluetooth)

## 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

- • **Unmatched Durability:** Shock resistant and water proof up to 200m for any adventure.
- • **Solar-Powered Precision:** Harness the sun for unstoppable, eco-smart timekeeping.
- • **Jet-Engine Inspired Dial:** Dynamic rotating disk blends tech and style in every glance.
- • **Sleek Layer Guard Design:** Resin cushioning meets stainless steel for a refined yet rugged fit.
- • **Bluetooth-Connected Time Sync:** Stay flawlessly on schedule worldwide with smartphone link.

## Overview

The Casio G-Steel GST-B100-1ACR is a solar-powered, Bluetooth-enabled analog chronograph watch featuring a unique jet-engine inspired rotating dial. Built with a layered resin and stainless steel case, it offers shock resistance and 200-meter water resistance, making it perfect for professionals who demand durability and precision. Its smartphone link ensures accurate global timekeeping, while the sleek black design fits seamlessly from boardroom to weekend.

## Description

From G-SHOCK, the watch that always strives for toughness, the first G-STEEL lineup models to offer chronograph performance in analog format. Though all the dials of this model are analog, they still boast G-Shock level shock resistant. The dial at 9 o'clock has a multi-functional rotating disk cut to resemble the thick blades of a jet engine that feature a change of color within the rotation of the blades to indicate the battery level and alarm setting. In addition, the blade rotates in the timekeeping and stopwatch mode with the passage of time. For a better fit to the wrist and elegant design, a new layer guard structure houses resin that cushions parts inside the case and a higher density mounting. Equipped with Bluetooth™, these watches can connect to a smartphone with the press of a button and acquire time information from an internet time server with the result of accurate timekeeping no matter where in the world that you are.

Review: Es genial me encanta I love that great. - Realmente soy fiel a Casio de toda la vida y cada reloj que he arquirido con los años me ha solprendido el diseño la tecnología pero con este hermoso reloj me ha solprendido lo increíble y exacto que es su diseño unico y practico para cualquier activida sea para trabajar o salir de gala luce Realmente genial. Lo recomiendo a todos I am really faithful to Casio for life, and every watch I have purchased over the years has given me the design, technology, but with this beautiful watch I have been surprised by how incredible and accurate its unique and practical design is for any activity, whether it is to work or to leave the gala, it looks really great. I recommend it to everyone.
Review: Amazing Watch. - This is an amazing watch. I have liked Casio always but I haven't had one since I was a child (25 years ago). It is the best because of the G-Shock, solar power and the bluetooth connection, that makes it a really special one. It is bigger than I expected, but now I like that it is big. It is light and good looking. I have recieved great compliments, but what I really care about is that I can wear it at work, where I have to use my arms a lot and I'm not scared of breaking my Casio because I know it is resistent to any condition. I really like it.

## Features

- Smartphone Link functions; battery level indicator; new layer protection structure; robust solar; dual world time dial; chronograph
- Water resistance up to 200 m; shock resistance; Neobrite; Bluetooth capability
- Quartz Movement
- Case diameter: 53.8 mm
- Water resistant to 200 m (656 ft): generally suitable for professional marine activities and serious surface water sports, but not diving

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B075JH5495 |
| Additional Features | Bluetooth Connectivity |
| Age Range Description | Adult |
| Band Color | Black |
| Band Length | 10.75 Inches |
| Band Material Type | Rubber |
| Band Width | 22.6 Millimeters |
| Bands | 1 |
| Best Sellers Rank | #564,589 in Fashion ( See Top 100 in Fashion ) #13,761 in Men's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 53.8 Millimeters |
| Case Material Type | Stainless Steel |
| Case Thickness | 14.1 Millimeters |
| Character | Fashion |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Crystal | mineral |
| Customer Reviews | 4.7 out of 5 stars 557 Reviews |
| Dial Color | Noir |
| Display | Analog-Digital |
| Embellishment Feature | Crystal |
| Face Style | Chronograph |
| Included Components | Watch & Resin Strap with Stainless Steel Buckle |
| Item Type Name | Watch |
| Item Weight | 101 g |
| Manufacturer | Casio G Shock |
| Manufacturer Part Number | GST-B100-1ACR |
| Material | Resin |
| Model Name | G-Steel |
| Model Number | GST-B100-1ACR |
| Pattern | Solid |
| Power Source | Food |
| Shape | Round |
| Sport Type | Swimming |
| Strap Type | Two Piece Strap |
| Style Name | Watches |
| Theme | Sports |
| UPC | 889232168159 |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 200 Meters |
| Water Resistance Level | Waterproof |

## Images

![Casio Men's 'G-Steel by G-Shock' Quartz Solar Bluetooth Connected Resin Dress Watch, Color: Black (Model: GST-B100-1ACR) - Image 1](https://m.media-amazon.com/images/I/51l2zdQej1L.jpg)
![Casio Men's 'G-Steel by G-Shock' Quartz Solar Bluetooth Connected Resin Dress Watch, Color: Black (Model: GST-B100-1ACR) - Image 2](https://m.media-amazon.com/images/I/21WzaXbIzaL.jpg)
![Casio Men's 'G-Steel by G-Shock' Quartz Solar Bluetooth Connected Resin Dress Watch, Color: Black (Model: GST-B100-1ACR) - Image 3](https://m.media-amazon.com/images/I/51uvdwzP5kL.jpg)

## Questions & Answers

**Q: Is there a international warranty card? Thx.**
A: WARRANTY CARD IS VALID ONLY FOR SERVICE IN THE COUNTRY OF PURCHASE.

**Q: What exactly does the app do for the watch besides set the time?**
A: The app primarily syncs the time to your phone but also offers a secondary time zone for travelers as well as alarm and timer but obviously your phone already has those features. The only other thing the app has is the guide that is the instructions for use document. So essentially you are correct, the app mostly is making sure time is exact by syncing with your phone but even so you have to push the red button to update it for daylight saving time changes.

**Q: Is this watch made in japan? just to confirm before i place my order.  thank you.**
A: the watch is cased in China

**Q: What does “Battery life: 5 months” means?**
A: This is a solar power watch, if left in a drawer for example it should have power reserve lasting that long without exposure to light

## Customer Reviews

### ⭐⭐⭐⭐⭐ Es genial me encanta I love that great.
*by Y***S on 18 December 2025*

Realmente soy fiel a Casio de toda la vida y cada reloj que he arquirido con los años me ha solprendido el diseño la tecnología pero con este hermoso reloj me ha solprendido lo increíble y exacto que es su diseño unico y practico para cualquier activida sea para trabajar o salir de gala luce Realmente genial. Lo recomiendo a todos I am really faithful to Casio for life, and every watch I have purchased over the years has given me the design, technology, but with this beautiful watch I have been surprised by how incredible and accurate its unique and practical design is for any activity, whether it is to work or to leave the gala, it looks really great. I recommend it to everyone.

### ⭐⭐⭐⭐⭐ Amazing Watch.
*by F***Z on 3 January 2019*

This is an amazing watch. I have liked Casio always but I haven't had one since I was a child (25 years ago). It is the best because of the G-Shock, solar power and the bluetooth connection, that makes it a really special one. It is bigger than I expected, but now I like that it is big. It is light and good looking. I have recieved great compliments, but what I really care about is that I can wear it at work, where I have to use my arms a lot and I'm not scared of breaking my Casio because I know it is resistent to any condition. I really like it.

### ⭐⭐⭐⭐⭐ Gshock gst b100
*by M***Z on 17 March 2026*

es un producto original y viene en las mejores condiciones.

## Frequently Bought Together

- Casio Men's GST-B100-1ACR G-Shock Analog Display Quartz Black Watch
- CoolFire - UV Free Solar Watch Fast Charger for All Eco Solar Watches for Men, Reloj Hombre Portable Battery Charger, for All Kinds of Sophisticated Eco Solar Watches (Black)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-07-06*