Screw Oyster Style Bench 5700 Watch Case Back Opener And Closer With Metal Base

Bench-mounted screw case back tool with a 65mm maximum chuck opening and 12 interchangeable chucks — built for Rolex, Tudor and other screw-in waterproof case backs.

⭐ At a glance

📏 Maximum chuck opening: 65mm

✅ Suitable for Rolex, Tudor and other screw-in watch case backs

📦 Includes metal base, 12 chucks and a full set of fixing accessories

✔️ Condition: New with tags

🔧 What it does & how to use

This bench-standing case opener and closer is designed for removing and refitting screw-in case backs on waterproof watches, including Rolex and Tudor style Oyster cases. It's a professional-grade tool suited to watchmakers and repairers, but the metal base and interchangeable chuck system make it straightforward for a careful hobbyist to use too.

• Select a chuck: choose the correct size from the 12 supplied chucks to match the diameter of the case back.
• Fit the chuck: attach the chosen chuck to the opener head.
• Secure the watch: place the watch case into the metal base so it's held steady during the operation.
• Engage the case back: lower the chuck onto the case back so it grips the edge firmly.
• Open or close: turn the handle anticlockwise to unscrew and lift the case back off, or clockwise to screw it back into place.
• Protect the case: the chuck grips the case back itself rather than the case sides, helping to reduce the risk of scratches or slipping during use.

⚠️ Please check that one of the 12 supplied chucks matches your watch's case back diameter before use, as fit varies between screw-back watch models.