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

Apply a friction grip to a compatible screw-in watch case back without starting with a metal case wrench.

Features and specifications

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

Who it suits

For an experienced watch hobbyist working on an appropriate, non-seized case back. Confirm the case-back construction before attempting to turn it.

Before you choose

This tool will not open every case or release a press-fit back. Opening a watch exposes its movement and can compromise the seal. Closing a case with a ball does not verify water resistance; pressure testing may be needed.

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

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