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

4 x flat aluminium dies:

Works on any stone

loupes are used by jewellers and antiques traders for looking at very small marks

part of which will be light and part of which will be dark

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

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