Universal Tool for opening watches with screwed back lid

To unscrew watches (automatic, machanical, or quartz) for repairing or battery replacement

1. Make sure that the lid (cover bottom) of your watch is screwed on!
2. Some watches have a notched cover, which is nevertheless clipped
3. Suitable for cases Up to 55.5 mm in diameter (spacing) between the "notches" / Minimum spacing: 18.6 mm
4. If you cannot unscrew the cover with this tool, it is because either the cover is not screwed on but clipped (nested), or that the thread of the lid is oxidized, messed up, or even glued! In this case, you need a professional tool such as item reference 143