Heavy duty back opener, bench model Polishing compounds - cleaning and plating fluids 5x 6x 83mm Single pair

5x 6x 83mm Single pair of lenses + small auxiliary lens 1x + 8x 9x 55mm 1

SIZE  (magnification X diameter of lens in mm):

the background (small text) is blurred because a camera can't focus on the far-text (not magnified) and near-text (magnified) and  at the same time

You then turn the base to focus

it comes off)

Heavy duty back opener, bench model Polishing compounds - cleaning and plating fluids 5x 6x 83mm Single pairSummary Professional bench tool for opening the back of any standard screw back watch (not Rolex) Detail Easily adjustable to any size Opens the stiffest of backs easily Selection of prongs Option to screw the opener to a workbench.