Type: Watch Box
Simple knife blade case back opener
Type: Watch Box
Beco Victorinox Case opener and pocket knife
Type: Watch Box
Case back opener for Rolex and Tudor
Type: Accessory
Professional key for opening Rolex and Tudor watches with 7 Milled chucks
Type: Watch Box
Bergeon case back opener for Rolex and Tudor
Type: Watch Box
Bergeon "Jaxa" case back opener
Watch case openers
The tool depends on the case back of the watch: screwed, snapped on or held by screws.
Screw-down back
It has notches around its edge: an adjustable claw wrench of the Jaxa type engages them and unscrews the back. Bergeon and Beco Technic offer several models, and Bergeon makes a dedicated opener for Rolex and Tudor.
Snap-on back
It opens with a case knife, slipped into the notch provided on the edge of the case.
After opening
A water-resistant watch must be checked after each opening: the gasket may need replacing.
Frequently asked questions
How do I recognise my case back? Regular notches indicate a screw-down back; a smooth edge with a small notch, a snap-on back; screw heads, a back held by screws.
Does a claw wrench open every screw-down back? No: some fluted backs require a dedicated key. If in doubt, entrust the watch to a watchmaker.