My Step-by-Step Blueprint for Tooling & Demagnetizing
As an independent horologist and watch collector, I can’t stress enough how vital it is to keep our tools and movements in top-notch condition. Demagnetizing tools may not seem like a glamorous part of horology, but trust me—this is a vital step that can save countless hours of troubleshooting and ensure your timepieces run accurately. Today, I want to share my personal step-by-step blueprint for tooling and demagnetizing that I've refined over years of practice in my workshop.
Understanding Magnetic Fields
Before we look at the process, let's talk about why demagnetization matters. Magnetic fields can wreak havoc on the intricate mechanics of a watch. I've seen it firsthand—timepieces that lose their accuracy due to magnetic interference can be frustrating. Movements like the ETA 2824-2 or Seiko's 4R series can be particularly susceptible to magnetism. If a watch starts running fast or slow without any obvious reason, it’s time to check for magnetism first.
Tools You'll Need
Here's what you'll need to gather to get started:
- Demagnetizer: You can find a reliable demagnetizer for about $50 to $150. I prefer the more compact, handheld models like the one from Bergeon.
- Screwdrivers: A set of precision screwdrivers (I recommend the Wera Kraftform series).
- Tweezers: Non-magnetic tweezers are essential for handling delicate components.
- Magnifying Loupe: A quality loupe or microscope will help you see finer details.
- Cleaning Cloth: This helps keep everything tidy.
Here’s a quick comparison of my top choices for demagnetizers:
| Demagnetizer Model | Price (USD) | Features | Best For |
|---|---|---|---|
| Bergeon 30080 | $99 | Compact, quick demagnetizing | General use |
| Seiko Demagnetizer | $59 | Easy to use, durable | Watchmakers on a budget |
| Watchmaker's Choice | $150 | Advanced settings, large scale | Professional workshops |
Step-by-Step Process for Tooling & Demagnetizing
Step 1: Assess Your Tools Start by examining your tools for any signs of wear or damage. A good watchmaker's tool can last a lifetime, but neglect can lead to inaccuracies. Check the tips of your screwdrivers and the edges of your tweezers.
Step 2: Prepare Your Workspace Ensure your workspace is clean and organized. I always have a dedicated area for tooling that is free from any magnetic interference. If your workspace has electronic devices nearby, they can create an unwanted magnetic field.
Step 3: Demagnetize Your Tools Now we get to the fun part. Take your demagnetizer and plug it in. Here’s how to use it:
- Turn on the Demagnetizer: Follow the manufacturer's instructions.
- Demagnetizing Process: Hold each tool above the demagnetizer for about 5 seconds. Move it in a circular motion to ensure thorough demagnetization.
- Repeat if Necessary: For tools that have been heavily magnetized, you may need to run them through the process a couple of times.
Step 4: Test for Magnetism I like to use a simple method to check if my tools are magnetized. Just bring a small metal object, like a paperclip, near your tools. If it sticks, you need to demagnetize again.
Step 5: Final Check on Timepieces Once your tools are demagnetized, it’s time to check your movements. Open the case back of your watch (make sure it’s done in a dust-free environment) and visually inspect the movement.
Step 6: Demagnetize the Movement If you suspect the movement is magnetized, place it on the demagnetizer as you did with your tools. It’s the same process—5 seconds above the unit, moving it in circles.