$42.00
You Saved
The Bergeon 8403 is a professional tool designed for opening snap‑on watch case backs with sparse points, featuring a black anti‑slip sleeve and a blade safety lock. The blade is made of 440 stainless steel with a hardness of 57 HRC, offering durability and strength. The safety lock mechanism works by pressing the SWIZA cross to unlock the blade and to lock it back after use, ensuring safe carrying and storage. An ideal tool for watchmakers to safely open snap‑fit case backs without scratching the case.
440 Stainless Steel Blade – 57 HRC hardness, sharp, durable, and resistant to bending.
SWIZA Cross Safety Lock – Press to unlock/lock, prevents accidental opening, ensuring safe operation.
Black Anti‑Slip Sleeve – Comfortable grip, increased friction for better control.
Designed for Snap‑On Case Backs – Ideal for lifting case backs with sparse notches without scratching.
Swiss Bergeon Original – Professional quality, reliable and durable.
| Parameter | Details |
|---|---|
| Model | Bergeon 8403 |
| Type | Case opener for snap‑on case backs |
| Blade Material | 440 stainless steel, 57 HRC |
| Handle Material | Black anti‑slip sleeve with safety lock |
| Safety Lock | SWIZA cross press‑to‑unlock/lock mechanism |
| Origin | Switzerland |
Opening snap‑on watch case backs with sparse notches (typically press‑fit).
Used during battery replacement, movement service, or case interior cleaning.
Suitable for snap‑fit case backs found on brands such as Rolex, Omega, etc.
1. Is this a genuine Bergeon tool?
Yes. It is a Swiss Bergeon factory‑original model 8403, brand new.
2. How do I use it safely?
Press the SWIZA cross to unlock the blade, insert the tip into the case back notch, and gently pry open. Press the SWIZA cross again to lock the blade after use.
3. Will the blade scratch the case?
When used correctly, the tip should engage only the case back notch, not the case exterior. Apply protective film on the case if needed.
4. Is the blade replaceable?
The blade is typically fixed and not replaceable. Consider other Bergeon models if replaceable blades are needed.
5. How do I maintain the tool?
Clean the blade after use, remove oil residue. Hone the edge lightly if needed. Store in a dry place to prevent rust.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
