Bergeon 8008 rubber ball to open and close case backs for watches

Bergeon 8008 rubber ball to open and close backs, By Buzzufy.com - Vintage Watches, Parts & Tools

BERGEON TOOLS To Start My Watchmaking Journey

Longines Caliber 30L Train Wheel Bridge Part 110

What tool should I use to unscrew this? I tightened it too hard and now I cannot open it with my bare hands anymore. : r/watchmaking

Watch Movement Holder

Longines Caliber 30L Train Wheel Bridge Part 110

Swiss Watchmaker Tools for Vintage and New Watches. Watchmakers.

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Bergeon 7911-B Victorinox pocket mini knife - Bergeon

Rubber Watch Case Opening 8 Ball Bergeon 8008 - HB8008

Convenient Watch Back Case Closer

Bergeon 3010 watchmaker tool for tightening the pipes of hands & winding crowns - Bergeon