Bergeon 8008 Rubber Watch Case-Back Opening Ball — 65mm

Gold Kings recommends the Bergeon 8008 for experienced watch hobbyists working on suitable screw-in case backs. The rubber ball offers a friction-grip option for an appropriate, non-seized back.

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SKU: AMZ-B07N44WVL2 Category: Jewelry & Watch Tools

Why Gold Kings recommends it

We like this as a task-specific addition to a watch bench when the case construction is already known. Its appeal is applying friction with rubber rather than beginning with a metal wrench. That makes it worth considering for compatible backs that can be turned without excessive force.

Features and specifications

Rubber friction ball.
Listed diameter: 65mm.
Intended for compatible screw-in case backs.

Gold Kings buying advice

Identify the case-back type before trying it. The ball will not release a press-fit back or solve every stuck case. Opening a watch exposes the movement and can affect its seal. Closing it again does not verify water resistance; have that checked appropriately before relying on it around water.

Related Gold Guide: why changes to a watch can affect value.