$160.00
You Saved
The Bergeon 5011 is a professional watch crystal removing pump designed for safely extracting unbreakable glasses (e.g., mineral glass, acrylic) from one‑piece watch cases. It comes with three interchangeable heads of diameters 1.60, 2.00, and 2.50 mm to fit various crystal stem holes. A dedicated key is also included for removing the half‑stem with the crown, facilitating separation of the crystal from the stem assembly. Using air pressure, the pump pushes the crystal out from the inside, preventing damage to the case or crystal.
Pneumatic Removal – Uses air pressure to push the crystal out from inside, safe and non‑damaging.
Three Interchangeable Heads – Includes 1.60, 2.00, and 2.50 mm diameters to fit most one‑piece case crystal stem holes.
Half‑Stem Key Included – A key for removing the half‑stem with the crown, making it easier to detach the stem before crystal extraction.
Easy Operation – No complex tools required; ideal for everyday watchmaker use.
Swiss Bergeon Original – Professional quality, durable and reliable.
| Parameter | Details |
|---|---|
| Model | Bergeon 5011 |
| Type | Crystal removing pump |
| Compatible Crystals | Unbreakable glasses (mineral, acrylic, etc.) |
| Compatible Cases | One‑piece watch cases |
| Pump Head Diameters | 1.60 mm, 2.00 mm, 2.50 mm (3 heads) |
| Included Accessory | Half‑stem removal key ×1 |
| Origin | Switzerland |
Removing unbreakable crystals from one‑piece watch cases without opening the case back.
Safely extracting damaged or scratched crystals before replacement.
Servicing one‑piece cases where the stem passes through the crystal (e.g., some dive watches or sports watches).
1. Is this a genuine Bergeon tool?
Yes. It is a Swiss Bergeon factory‑original model 5011, brand new.
2. How do I choose the correct pump head diameter?
Measure the stem hole diameter in the crystal and select the head that is slightly smaller to ensure a good seal.
3. Do I need to remove the winding stem first?
Yes. Use the included key to remove the half‑stem (with the crown) so the pump head can access the hole and create air pressure.
4. Can this tool be used for sapphire crystals?
Sapphire crystals are very hard and brittle; using air pressure may crack them. This tool is intended for mineral and acrylic crystals. For sapphire, use a crystal press.
5. How do I maintain the tool?
Clean the pump heads and seals after use. Inspect seals regularly for aging and replace if necessary.
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.
