Visually it looks like all the others, 'cheap' Uhrengehäuseöffner here at Amazon. Tools for the same purpose in top quality I've not discovered at about 120 euros. For me as a private person he is perfectly adequate for battery replacement. If you give yourself some effort, you also will not slip off. You can tell when you open even if the setting of the tool bit looser u one has again a bit readjust. That does not happen at the UE 100 EUR Tools probably. The only complaint I have the supplied bits. After opening and closing the first clock can be seen in the three used inserts a little wear (but only to the bits, not on the cover of the clock).
