---
product_id: 340311778
title: "Mudder 2 Piece Adjustable Watch Back Case Opener Kit Stainless Steel 58 mm and 50 mm Alloy Wrench Type Watch Back Cover Opener Remover Tool for Battery Replacement Repair"
brand: "mudder"
price: "329 kr"
currency: NOK
in_stock: true
reviews_count: 10
category: "Mudder"
url: https://www.desertcart.no/products/340311778-mudder-2-piece-adjustable-watch-back-case-opener-kit-stainless
store_origin: NO
region: Norway
---

# Fits 50mm & 58mm watch backs Durable, corrosion-resistant alloy 2 adjustable alloy openers Mudder 2 Piece Adjustable Watch Back Case Opener Kit Stainless Steel 58 mm and 50 mm Alloy Wrench Type Watch Back Cover Opener Remover Tool for Battery Replacement Repair

**Brand:** mudder
**Price:** 329 kr
**Availability:** ✅ In Stock

## Summary

> ⌚ Unlock your watch’s potential with precision power! 🛠️

## Quick Answers

- **What is this?** Mudder 2 Piece Adjustable Watch Back Case Opener Kit Stainless Steel 58 mm and 50 mm Alloy Wrench Type Watch Back Cover Opener Remover Tool for Battery Replacement Repair by mudder
- **How much does it cost?** 329 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/340311778-mudder-2-piece-adjustable-watch-back-case-opener-kit-stainless)

## Best For

- mudder enthusiasts

## Why This Product

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

## Key Features

- • **Precision Fit for Every Watch:** Two adjustable openers cover 50mm and 58mm diameters, ensuring a perfect grip on most screw-in watch backs.
- • **Secure & Controlled Operation:** Adjustable wheel lets you fine-tune the opener’s grip, preventing slips and protecting your valuable timepieces.
- • **Built to Last with Premium Alloy:** Crafted from high-quality alloy, these tools resist wear and corrosion, delivering reliable performance over time.
- • **Effortless Battery Swaps & Repairs:** Ergonomic design with a sturdy handle provides maximum leverage, making watch battery replacements and repairs hassle-free.
- • **Essential Kit for Watch Enthusiasts:** Includes two versatile openers, empowering you to tackle a wide range of watch maintenance tasks like a pro.

## Overview

The Mudder 2 Piece Adjustable Watch Back Case Opener Kit features two durable alloy wrenches designed to fit watch backs up to 58mm and 50mm in diameter. Engineered for professional-level battery replacements and repairs, these ergonomic tools provide secure, adjustable grip and superior leverage, making watch maintenance straightforward and efficient for enthusiasts and professionals alike.

## Description

Quantity: 2 Color: silver Material: alloy 2 types of case openers: 2 case back cover openers, one of which is a 58mm diameter watch cover opener, the maximum opening diameter is 58mm, and the other is a smaller opener. , The maximum opening diameter is 50mm. How to use: you only need to fix the watch on the maintenance stand or hold it tightly, and then roll the adjusting wheel to set it to the position that matches the cover of the watch. After the case is opened, turn the back cover of the watch to open the back cover.

Review: Got the job done - I was replacing a battery on a watch of mine and had quite a hard time trying to remove the back cover because the removal tool was too big. I ordered these on desertcart and removed the battery cover without a problem. If there's one drawback, you have to get used to sizing the teeth to the cover but once you do, the back cover comes out pretty quickly. This little tool is very good and gets the job done quite nicely.
Review: Better than the other types - People should be aware that the 3 point type included in most of the watch tool kits is the (((small))) version that won't fit cases larger than 42 mm. (Guess how I found out...) Unless the kit specifically says you are getting a large case back opener assume it's a small one. Overall that 3 point type just looked like a problem waiting to happen. Too many moving parts and poor quality parts. Do I just order a bigger one? Umm... no. Then there is the 2 point with a thumbscrew to adjust the width. Not enough leverage there, having to twist it between your thumb and index finger. And it doesn't appear you can lock the width in place. So... no. Glad I got this one. Simple, with a substantial handle to apply as much leverage as you need without losing control of the tool. And sometimes you need a lot of leverage. My only complaint - and others have noted - is it can be a bit fussy tightening the adjustment screw and not misadjusting the width you want in the process. You may have to adjust and tighten more than once to get it right. Once you do you have a rock solid tool at just the right width. Missing parts? Mine didn't have missing parts but the smaller one came unassembled. So you screw the part in place. Did youse people check the bag for that part? I doubt you will ever need to use the smaller one anyway. I like it. No regrets.

## Features

- Case opener: the case back cover opener can easily remove or tighten the waterproof case back cover to replace the battery or repair the watch. There is a groove on the back cover of the waterproof case.
- Size: the package contains 2 case back cover openers, one of which is a 58mm diameter watch cover opener, the maximum opening diameter is 58mm, and the other is a smaller opener. , The maximum opening diameter is 50mm.
- quality: two different types of openers are made of quality alloys, which are durable and not easily damaged.
- How to use: fix the watch on the maintenance stand or hold it tightly, and then roll the adjusting wheel to set it to the position that matches the cover of the watch. After the case is opened, turn the back cover of the watch to open the back cover.
- Note: the case back cover opener can be applied to open and close most screw-in watch back covers, and cannot be applied to directly pry the back cover of the watch.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B092VSYP1W |
| Age Range Description | Adult |
| Band Color | Silver |
| Band Material Type | Metal |
| Bands | 1 |
| Best Sellers Rank | #1,450,153 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #2,082 in Watch Repair Tools & Kits |
| Brand Name | Mudder |
| Case Diameter | 50 millimeters |
| Case Material Type | Alloy |
| Case Thickness | 14 millimeters |
| Character | Fashion |
| Clasp Type | Lobster Claw Clasp |
| Clasp type | Lobster Claw Clasp |
| Closure Type | Buckle |
| Crystal | Crystal |
| Customer Reviews | 4.3 out of 5 stars 362 Reviews |
| Dial Color | Silver |
| Display | Analog |
| Embellishment Feature | Crystal |
| Face Style | Modern |
| Included Components | 2 Case Back Cover Openers |
| Item width | 2 centimeters |
| Manufacturer | Mudder |
| Manufacturer Part Number | Mudder-421986 |
| Model Name | 421986 |
| Model Number | Mudder-421986 |
| Power Source | Battery Powered |
| Sport Type | Walking |
| Strap Type | Bracelet |
| Style Name | Modern |
| Unit Count | 2 |
| Watch Movement Type | Quartz |
| Water Resistance Level | Waterproof |

## Images

![Mudder 2 Piece Adjustable Watch Back Case Opener Kit Stainless Steel 58 mm and 50 mm Alloy Wrench Type Watch Back Cover Opener Remover Tool for Battery Replacement Repair - Image 1](https://m.media-amazon.com/images/I/71ROC+H0w1S.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Got the job done
*by P***S on July 11, 2022*

I was replacing a battery on a watch of mine and had quite a hard time trying to remove the back cover because the removal tool was too big. I ordered these on Amazon and removed the battery cover without a problem. If there's one drawback, you have to get used to sizing the teeth to the cover but once you do, the back cover comes out pretty quickly. This little tool is very good and gets the job done quite nicely.

### ⭐⭐⭐⭐⭐ Better than the other types
*by R***O on May 27, 2022*

People should be aware that the 3 point type included in most of the watch tool kits is the (((small))) version that won't fit cases larger than 42 mm. (Guess how I found out...) Unless the kit specifically says you are getting a large case back opener assume it's a small one. Overall that 3 point type just looked like a problem waiting to happen. Too many moving parts and poor quality parts. Do I just order a bigger one? Umm... no. Then there is the 2 point with a thumbscrew to adjust the width. Not enough leverage there, having to twist it between your thumb and index finger. And it doesn't appear you can lock the width in place. So... no. Glad I got this one. Simple, with a substantial handle to apply as much leverage as you need without losing control of the tool. And sometimes you need a lot of leverage. My only complaint - and others have noted - is it can be a bit fussy tightening the adjustment screw and not misadjusting the width you want in the process. You may have to adjust and tighten more than once to get it right. Once you do you have a rock solid tool at just the right width. Missing parts? Mine didn't have missing parts but the smaller one came unassembled. So you screw the part in place. Did youse people check the bag for that part? I doubt you will ever need to use the smaller one anyway. I like it. No regrets.

### ⭐⭐⭐⭐ works well, needs a vice or clamp
*by S***M on July 15, 2026*

need to buy a kit with a clip or clamp unless you have one

## Frequently Bought Together

- Mudder 2 Piece Adjustable Watch Back Case Opener Kit Stainless Steel 58 mm and 50 mm Alloy Wrench Type Watch Back Cover Opener Remover Tool for Battery Replacement Repair
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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-09-23*