Genuine Bergeon Set 3 Watch Case Back Opener Rubber Ball 8008 8007 8001 Swiss

Genuine Bergeon rubber ball case back openers — the complete set of three: yellow 8001, red 8007 and black 8008.

⭐ At a glance

📏 65mm rubber friction balls

✅ Fits smooth screw-back watch cases, including Rolex and Omega models

📦 Set of 3 — yellow 8001, red 8007, black 8008

✔️ New with tags, genuine Swiss-made Bergeon

🔧 What it does & how to use

Each ball is a slightly tacky rubber friction opener used to unscrew and re-tighten smooth, screw-down watch case backs without scratching or marking the case — a standard bench tool for watchmakers and keen hobbyists working on screw-back cases such as those found on Rolex, Omega and similar models. Having all three colours together makes it easy to keep grip sizes to hand and swap between them for different case diameters.

• Position: press the ball firmly and squarely onto the centre of the case back.
• Loosen: turn anticlockwise while keeping steady downward pressure to break the seal.
• Remove: once loose, lift the back away by hand.
• Refit: place the case back and turn the ball clockwise to screw it back down securely.

⚠️ Please check these balls work by friction grip and are only suitable for smooth, unslotted screw-back cases — case backs with notches or slots for a wrench-type tool will need a different opener.