Tool set for opening backs of large watches Diamond and Moissanite testers 2 4 x flat aluminium dies:

4 x flat aluminium dies:

simply tell us (there is no need to fill it in again)

If you specifically need to test diamonds

turn the wheel slowly until the glass / back clicks into place

Works on any stone

Tool set for opening backs of large watches Diamond and Moissanite testers 2 4 x flat aluminium dies:Summary Opening kit for all sizes of screw back watch from 18mm diameter to 50mm diameter. It solves the problem of how to open larger (in addition to standard size) watch backs; how to open them when they are too stiff to open (with the opener) just by holding in your hands; and you get tweezers, a watchmaker's eyeglass and a good quality spring lug remover too all in a fitted case. case opener for screw back watches case holder box of attachments