BERGEON8008 B Ball. Rubber Ball to Open and Close All Types of Screw Bottom Boxes - Watchmaker Tool - Swiss Made

Remarkably effective at removing screw watchcase backs. Compared with the wrench type devices this one leaves no scratches and is very simple to use. Inexpensive solution for those of us who prefer to change our own quartz watch batteries or even regulate our mechanical watches.An essential buy.

Great for removing watch back plate

Great product for removing screw down backs of watches without scratching the case back

Exactly as expected

Excellent tool , shifts most backs without risk of scratching. Means only need to use the case back remover tools on a few overtightend

Works well, and great value for the price.

Brill, works as described. After reading similar listings of having to inflate yourself. I was pleasantly surprised that this arrived good to go out of the box.

Have some watched with really large backs works perfect but sometimes you need to remove the straps to get the levarge