---
product_id: 662906694
title: "Casio GA-B2100CY-1A Caution Yellow Series"
brand: "g-shock"
price: "€ 278.00"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/662906694-casio-ga-b2100cy-1a-caution-yellow-series
store_origin: HR
region: Croatia
---

# Stable solar power 20 bar water resistant Bluetooth smartphone sync Casio GA-B2100CY-1A Caution Yellow Series

**Brand:** g-shock
**Price:** € 278.00
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay powered, synced, and stylish—own the moment with G-Shock’s Caution Yellow!

## Quick Answers

- **What is this?** Casio GA-B2100CY-1A Caution Yellow Series by g-shock
- **How much does it cost?** € 278.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/662906694-casio-ga-b2100cy-1a-caution-yellow-series)

## 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

- • **Rugged Yet Refined:** Shock resistant with mineral glass for a watch that works as hard as you do 🛡️
- • **Dive-Ready Durability:** Waterproof up to 200 meters—take it from boardroom to beach 💧
- • **Unstoppable Solar Power:** Harness the sun for endless energy—no battery swaps, ever ⚡
- • **Seamless Smartphone Sync:** Auto time updates & phone finder via Bluetooth app 📱
- • **Bold Safety-Inspired Design:** Stand out with caution-yellow accents that scream confidence and style 🚦

## Overview

The G-Shock Casio GA-B2100CY-1A Caution Yellow Series is a shock-resistant, solar-powered analog-digital watch featuring 20 bar water resistance and Bluetooth smartphone connectivity. Its bold black and yellow design combines rugged durability with modern tech, making it perfect for professionals who demand reliability and style in every setting.

## Description

Turn heads and grab attention with a rugged timepiece; a bold, eye-catching black and yellow color scheme. Tough yet stylish designs feature basic black, accented with touches of the bright yellow used for emergency rescues and safety signs. A cool, versatile look that complements both casual and work styles.

Review: These GA B2100 Watches Are Top Notch - I’ve bought five different versions of the GA B2100 and these are really nice timepieces. The resin bezel & bands are OK, but when you mod them with the stainless steel kits, they tend to really pop. My plan is to modify this model with an SKXMOD mod kit, black bracelet & bezel w/rose gold rivets. I have this tendency to name my modded G-Shocks, this one is going to be my ‘Bumble B2100’. Seriously, these Casio GA B2100 series tough solar, bluetooth watches are very good. Nicely designed. Solar powered so you don’t have the hassle of replacing batteries every couple years. Sets itself with the intuitive and very simple Bluetooth app you simply download to your smart phone. It updates the watch twice daily so the time is always accurate right down to the second. Has all the standard G-Shock features; stopwatch, timer, chime, a very cool reminder feature and phone finder via the bt app. If you misplace your phone, you can locate it quick & easy with this audible function. The watch itself is highly customizable. And with these metal mod kits, you can build a your own unique watch. G-Shock for life! 5*****Stars on all these Casio, G-Shock GA B2100 series timepieces from me. Buy it, mod it, try it and simply enjoy your Casioak. Mr. Lee’s unbiased review.
Review: Great Casio solar watch - Excellent watch. Beautiful colors mobile app,solar energy.

## Features

- Shock resistant
- 20 bar water resistant
- Keeps yourself in time
- Stable solar power
- Easy to operate via smartphone
- Easy to see in darkness

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLYVWTYH |
| Additional Features | Alarm, Light Up, Shock Resistant, Timer, Water Resistant |
| Age Range Description | Adult |
| Band Color | Black |
| Band Material Type | Resin |
| Band Width | 2 Inches |
| Bands | 1 |
| Best Sellers Rank | #598,464 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #2,715 in Men's Wrist Watches |
| Brand Name | G-Shock |
| Case Diameter | 48.5 Millimeters |
| Case Material Type | Resin |
| Case Thickness | 11.9 Millimeters |
| Character | fashion |
| Clasp Type | Buckle |
| Clasp type | Buckle |
| Closure Type | Buckle |
| Crystal | Mineral Glass |
| Customer Reviews | 4.3 out of 5 stars 69 Reviews |
| Dial Color | Yellow |
| Display | Analog-Digital |
| Embellishment Feature | Crystal |
| Face Style | Mixed |
| Included Components | Watch |
| Item Type Name | Casual Watch |
| Item type name | Casual Watch |
| Manufacturer | Casio |
| Manufacturer Part Number | GAB2100CY-1A |
| Model Name | GAB2100CY-1A |
| Model Number | GAB2100CY-1A |
| Power Source | Solar Powered |
| Series Number | 2100 |
| Shape | Hexagonal |
| Sport Type | Walking |
| Strap Type | Two Piece Strap |
| Style Name | Casual |
| Theme | Watches, Casual |
| UPC | 889232363752 |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 200 Meters |
| Water Resistance Level | Waterproof |

## Images

![Casio GA-B2100CY-1A Caution Yellow Series - Image 1](https://m.media-amazon.com/images/I/61nWGUT8lDL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ These GA B2100 Watches Are Top Notch
*by M***E on November 24, 2024*

I’ve bought five different versions of the GA B2100 and these are really nice timepieces. The resin bezel & bands are OK, but when you mod them with the stainless steel kits, they tend to really pop. My plan is to modify this model with an SKXMOD mod kit, black bracelet & bezel w/rose gold rivets. I have this tendency to name my modded G-Shocks, this one is going to be my ‘Bumble B2100’. Seriously, these Casio GA B2100 series tough solar, bluetooth watches are very good. Nicely designed. Solar powered so you don’t have the hassle of replacing batteries every couple years. Sets itself with the intuitive and very simple Bluetooth app you simply download to your smart phone. It updates the watch twice daily so the time is always accurate right down to the second. Has all the standard G-Shock features; stopwatch, timer, chime, a very cool reminder feature and phone finder via the bt app. If you misplace your phone, you can locate it quick & easy with this audible function. The watch itself is highly customizable. And with these metal mod kits, you can build a your own unique watch. G-Shock for life! 5*****Stars on all these Casio, G-Shock GA B2100 series timepieces from me. Buy it, mod it, try it and simply enjoy your Casioak. Mr. Lee’s unbiased review.

### ⭐⭐⭐⭐⭐ Great Casio solar watch
*by V***H on November 8, 2025*

Excellent watch. Beautiful colors mobile app,solar energy.

### ⭐⭐⭐⭐ Great watch, teeny tiny LCD
*by P***E on August 18, 2025*

Well, in wearing it now. I like that you don't NEED an app to get full functionality from it. I like the styling, I like the light, I love solar watches... The only thing I don't love about the watch is that the LCD screen is absolutely microscopic.

## Frequently Bought Together

- G-Shock Casio GA-B2100CY-1A Caution Yellow Series
- Zshion Stainless Steel Watch Protective Bumper Compatible with Casio GA-2100/2110, Wire Watch Guard Protector for Casio GA 2100/2110 (Black)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-25*