Price range: $22.00 through $28.00
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The Bergeon 2835 series consists of polygonal steel pins designed to be used with the Bergeon 5700 case opener, specifically for removing screw‑down case backs that feature non‑standard slots or polygonal notches. The series includes six different profiles (A through F) to match various case back patterns from different brands. Sold individually, this allows watchmakers to select the exact pin needed for a precise, damage‑free engagement.
Polygonal Cross‑Section – Fits case backs with special polygonal notches, providing better grip than standard flat tools.
Hardened Steel – Durable, wear‑resistant, and resistant to bending.
Designed for Bergeon 5700 – Fits perfectly into the 5700 case opener’s drive socket for torque application.
6 Profile Options (A‑F) – Each profile matches specific case back patterns from brands like Rolex, Omega, Longines, etc.
Sold Individually – Purchase only the pin you need, no need for a full set.
| Parameter | Details |
|---|---|
| Models | Bergeon 2835‑A / 2835‑B / 2835‑C / 2835‑D / 2835‑E / 2835‑F |
| Type | Polygonal steel pin |
| Material | Hardened steel |
| Compatible Tool | Bergeon 5700 case opener |
| Compatible Case Backs | Screw‑down backs with polygonal notches |
| Sold As | 2 pcs |
Used with the Bergeon 5700 case opener to remove screw‑down case backs with special polygonal notches (e.g., Rolex, Omega, Longines).
Safely opening case backs during service, battery replacement, or movement repair.
Select the correct pin profile (A‑F) to match the case back pattern, preventing damage to the case or back.
1. Is this a genuine Bergeon product?
Yes. It is a Swiss Bergeon factory‑original pin (models 2835‑A to 2835‑F), brand new.
2. How do I choose the correct pin profile?
Examine the notch pattern on your case back. Refer to Bergeon’s profile chart or common brand matches: e.g., type A for many Rolex, type B for Omega. Send a photo of the case back to the seller for identification.
3. Does it only work with the Bergeon 5700 case opener?
It is designed for the 5700, but may fit other openers with the same drive socket. For best fit and torque, the Bergeon 5700 is recommended.
4. Do the pins wear out quickly?
Hardened steel is very wear‑resistant. Under normal use, they last a long time. If used repeatedly on very hard case back slots, gradual wear may occur, requiring replacement.
5. Is the price per single piece?
Yes, each pin is sold individually. Prices are typically the same for all profiles; confirm with the seller.
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.
