---
product_id: 367826846
title: "GMAS2100-1A"
brand: "g-shock"
price: "€ 215.28"
currency: EUR
in_stock: true
reviews_count: 5
category: "G Shock"
url: https://www.desertcart.hr/products/367826846-gmas2100-1a
store_origin: HR
region: Croatia
---

# 200m water resistance carbon core guard for ultra durability 1/100-second stopwatch precision GMAS2100-1A

**Brand:** g-shock
**Price:** € 215.28
**Availability:** ✅ In Stock

## Summary

> 🖤 Compact toughness meets chic style — own the moment with GMAS2100-1A

## Quick Answers

- **What is this?** GMAS2100-1A by g-shock
- **How much does it cost?** € 215.28 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/367826846-gmas2100-1a)

## 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

- • **Global Ready:** World time across 31 zones keeps you connected wherever business or pleasure takes you
- • **All-Day Visibility:** Dual Super Illuminator LED lights with adjustable duration keep you on time, anytime
- • **Unmatched Durability:** Carbon core guard structure ensures shock resistance for your active lifestyle
- • **Slim & Sleek Powerhouse:** Downsized GA-2100 design fits perfectly on any wrist without bulk
- • **Effortless Functionality:** Full auto-calendar, 5 alarms, stopwatch, and countdown timer streamline your day

## Overview

The Casio G-Shock GMAS2100-1A is a compact, lightweight watch featuring a durable carbon core guard structure, 200-meter water resistance, and a sleek monochromatic design with rose gold accents. Equipped with precise 1/100-second stopwatch, dual LED Super Illuminator lights, and world time for 31 zones, it blends rugged functionality with refined style for the modern professional.

## Description

From Casio G-Shock, this new GMAS2100 watch is a downsized version of the GA-2100 model. It is slim, lightweight, and compact in design and boasts a chic, monochromatic look. The octagonal bezel, flat face, simple bar hour markers, and carbon core guard structure that are distinctive features of the GA-2100 are now available in a compact configuration. The black resin strap and matching dial with rose gold-tone accents adds a feminine pop of color to this new style.Shock Resistant200-meter water resistanceCarbon Core Guard structureCase/bezel material: Carbon/ResinBlack Resin BandMineral Glass Neobrite Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)World time - 31 time zones1/100-second stopwatchCountdown timer5 daily alarmsHourly time signalHand shift featureFull auto-calendar (to year 2099)12/24-hour formatButton operation tone on/offRegular timekeepingSize of case : 46.2?42.9?11.2mmCasio Style #: GMAS2100-1A

Review: Good
Review: Great looking, great quality watch

## Features

- From Casio G-Shock, this new GMAS2100 watch is a downsized version of the GA-2100 model
- It is slim, lightweight, and compact in design and boasts a chic, monochromatic look

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B08ZDPZZFP |
| Batteries  | 1 LR44 batteries required. |
| Customer reviews | 4.4 4.4 out of 5 stars (230) |
| Date First Available  | 18 Mar. 2021 |
| Department  | Watches |
| Is discontinued by manufacturer  | No |
| Item model number  | GMAS2100-1A |
| Manufacturer  | G-Shock |
| Product Dimensions  | 20.32 x 12.7 x 12.7 cm; 150 g |

## Images

![GMAS2100-1A - Image 1](https://m.media-amazon.com/images/I/81t1YBvN-sL.jpg)
![GMAS2100-1A - Image 2](https://m.media-amazon.com/images/I/51o0SxlSabL.jpg)
![GMAS2100-1A - Image 3](https://m.media-amazon.com/images/I/51hnw7inHRL.jpg)
![GMAS2100-1A - Image 4](https://m.media-amazon.com/images/I/81lQY1uSV8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***U on 25 September 2023*

Good

### ⭐⭐⭐⭐⭐ Review
*by D***D on 12 January 2026*

Great looking, great quality watch

### ⭐⭐⭐⭐⭐ Review
*by A***Y on 14 July 2021*

My wife wanted another G shock but she doesn't like Baby G shocks and she wanted something that was fitting for her work place. She saw these come out and she liked the black one. I bought it as a gift and it 100% met her expectations. It's a good size for a small wrist. It doesn't say Baby G on it which is a turn off for some people. The black is a nice shade for a clean look and the rose gold like accents give the watch a little something so it fits in well in a work environment and jewelry coordination. If it was like the all black larger version it would be too tacti-cool for some settings. It's super light and it reads well. This watch definitely fulfills every bit of its specs, advertising and online appearance. Sometimes it's hard to tell how a watch will look in person and on the wrist but this one was spot on. If you are liking it but are unsure, spring for it. It meets the hype, and some.

## Frequently Bought Together

- G-Shock GMAS2100-1A
- G-Shock GA-2100 Series Watch

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**Shop now:** [https://www.desertcart.hr/products/367826846-gmas2100-1a](https://www.desertcart.hr/products/367826846-gmas2100-1a)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-03*