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This is a genuine Bergeon 6923 tool to release and lock the bolt of oscillating weights, made in Switzerland, designed specifically for releasing and locking the oscillating weight bolt, especially for ETA 2892 and 7750 movements. It enables safe removal and installation of the oscillating weight in automatic movements, preventing damage to the bolt or rotor assembly—a dedicated precision tool for movement repair. This product is brand new and genuine, in original packaging.
Brand：Bergeon (Swiss)
Model：6923
Origin：Made in Switzerland
Quality：Genuine original, brand new in original packaging
Type：Oscillating weight bolt release and lock tool
Compatible Movements：ETA 2892 / 7750
Application：Releasing and locking the oscillating weight bolt, removing/installing the rotor
1. Is this tool an original Bergeon genuine part?
Yes. It is manufactured by Bergeon in Switzerland, brand new in original packaging, not a third-party copy.
2. Which movements is this tool suitable for?
Specifically designed for ETA 2892 and 7750 movements, for releasing and locking the oscillating weight bolt.
3. What should be noted when using this tool?
Align the tool vertically with the bolt and apply gentle force to avoid deforming the bolt or rotor. Work should be performed by a qualified watchmaker.
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