---
product_id: 419094746
title: "19mm 20mm 21mm Rubber Silicone Watch Strap Waterproof Watchband for Longines master Conquest HydroConquest L3 Black Accessories (Blue Folding clasp, 21)"
brand: "gc guan chao"
price: "₨1447"
currency: SCR
in_stock: true
reviews_count: 5
category: "Gc Guan Chao"
url: https://www.desertcart.sc/products/419094746-19mm-20mm-21mm-rubber-silicone-watch-strap-waterproof-watchband-longines
store_origin: SC
region: Seychelles
---

# 21mm precision fit Waterproof natural rubber 316L stainless steel clasp 19mm 20mm 21mm Rubber Silicone Watch Strap Waterproof Watchband for Longines master Conquest HydroConquest L3 Black Accessories (Blue Folding clasp, 21)

**Brand:** gc guan chao
**Price:** ₨1447
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your wrist game with precision, comfort, and style.

## Quick Answers

- **What is this?** 19mm 20mm 21mm Rubber Silicone Watch Strap Waterproof Watchband for Longines master Conquest HydroConquest L3 Black Accessories (Blue Folding clasp, 21) by gc guan chao
- **How much does it cost?** ₨1447 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/419094746-19mm-20mm-21mm-rubber-silicone-watch-strap-waterproof-watchband-longines)

## Best For

- gc guan chao enthusiasts

## Why This Product

- Trusted gc guan chao brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Premium Natural Rubber:** Odorless, dustproof, and sweat-resistant for all-day comfort and durability.
- • **Versatile Style Upgrade:** Elevate your 41-43mm Conquest watch with a sporty yet sophisticated blue folding clasp.
- • **Seamless Radian Interface:** Flawlessly connects to your Longines HydroConquest for a sleek, integrated look.
- • **Secure Stainless Steel Buckle:** 316L-grade clasp ensures long-lasting corrosion resistance and a confident fit.
- • **Tailored Fit for 15-19cm Wrists:** Perfectly sized 90mm strap sides for a comfortable, custom wrist embrace.

## Overview

This 21mm waterproof watch strap by GC Guan Chao is crafted from natural rubber for odorless, sweat-proof comfort and features a durable 316L stainless steel folding clasp. Designed specifically for Longines HydroConquest models (41-43mm), it offers a seamless radian interface and a tailored fit for 15-19cm wrists, combining sporty durability with refined aesthetics.

## Description

G C Guan chao The Rubber Watch band uses the natural rubber, no peculiar smell, dustproof, antiperspirant. The watch band is fashionable and beautiful, comfortable for daily wear and easy to manage. Suitable for each environment.

Review: Very disappointed 😥 - The quality is not what I was expecting, it doesn't look original, not fitting wroud the hand, compared with the price I feel very disappointed.
Review: La correa está bien en general, se ve bonita y cumple bien con su función, excepto que noto demasiado rígido el material empleado. Eso hace que la hebilla no siga la curva general de la muñeca y provoca que se forme una brecha que se atora por todos lados. En la foto ya no se ve tan dramático porque la sumergí por unos minutos en agua hirviendo para darle una forma curva. La verdad, el material tendría que ser más flexible.

## Features

- Watch band design: Watch band interface RADIAN interface design, watch band installation, watch and band connection position closely connected, beautiful style.
- Band length: The length of the two sides of the strap is 90 mm, suitable for 15-19 mm wrist wear.
- Strap material: the Strap is made of natural rubber, no dust, odor-proof, sweat-proof, soft and comfortable to wear.
- Table Buckle Material: table buckle with stainless steel production, 316L material, stainless, durable.
- Strap dimensions: Strap interface dimensions: 21MM.For Watch: GC Guan Chao Watch strap for Longines hydro conpuest. Watch. Suitable for conpuest watch with diameter 41mm, 43mm.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B09H5T898M |
| Customer reviews | 3.7 3.7 out of 5 stars (14) |
| Date First Available  | 1 January 2024 |
| Department  | mens |
| Manufacturer  | GC GUAN CHAO |
| Package Dimensions  | 18.11 x 11.91 x 1.19 cm; 18 g |

## Images

![19mm 20mm 21mm Rubber Silicone Watch Strap Waterproof Watchband for Longines master Conquest HydroConquest L3 Black Accessories (Blue Folding clasp, 21) - Image 1](https://m.media-amazon.com/images/I/61GxUAXzPOL.jpg)

## Customer Reviews

### ⭐ Very disappointed 😥
*by A***R on 12 February 2023*

The quality is not what I was expecting, it doesn't look original, not fitting wroud the hand, compared with the price I feel very disappointed.

### ⭐⭐⭐ Review
*by R***O on 13 April 2023*

La correa está bien en general, se ve bonita y cumple bien con su función, excepto que noto demasiado rígido el material empleado. Eso hace que la hebilla no siga la curva general de la muñeca y provoca que se forme una brecha que se atora por todos lados. En la foto ya no se ve tan dramático porque la sumergí por unos minutos en agua hirviendo para darle una forma curva. La verdad, el material tendría que ser más flexible.

### ⭐⭐⭐⭐⭐ Review
*by A***E on 1 January 2023*

Quality rubber strap with premium hardware. Perfect fit and looks just like the stock strap that comes with the watch. My only complaint is the sharpness of the buckle corners. I sanded them down with success and no damage. I’m very pleased with the strap despite. Saved a ton of money on the same look! Can’t go wrong.

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**Shop now:** [https://www.desertcart.sc/products/419094746-19mm-20mm-21mm-rubber-silicone-watch-strap-waterproof-watchband-longines](https://www.desertcart.sc/products/419094746-19mm-20mm-21mm-rubber-silicone-watch-strap-waterproof-watchband-longines)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-05*