Watch case back opener will open and close screw type backs of watches. The mini tool comes with 2 prongs that adjust to the size of the watch back. This is a alternative to the Jaxa case wrench. The tips adjust from 9/16" to 2" Size: 2 1/2" Economical Tool.

Watch Case Back Opener and Closer

Compact 2 Prong Tool

Used To Open and Close Backs of Screw Type Wrist Watch

Handy Tool Opening from 9/16" to 2"

Pocket Case Wrench