Since I am so far very well run with Varta button cells (long life), should rein in my 3D glasses also cells of Varta. So quickly ordered and they came very quickly. Contrary to some reviews my cells arrived at in their original packaging.
As the Varta button cells are hit, time will tell. I will therefore update this review in due course.
For info: I ordered at "THIS & THAT". I find that the reviewers whose button cells were delivered in their original packaging, should calmly call the dealer's name, in which was the case. This protects other customers immensely from such surprises. And no, in my case, I intend no promotional needs.