I've spent a lot of time and a ton of money trying to get an optimal magnification solution. I wear glasses and the the only really well working clip-on I've found is Bergeon's ARY clip-ons. You can see them here.
Nevertheless, I do not use this clip-on or any other lupes as I want to take advantage of the fact that I have two eyes and hence have stereo vision which helps immensely to determine distance when working with tweezers, etc. Instead I use magnification glasses (seen in this post) and a stereo microscope for all my work. It would seem to me that 99 % of all watch repairers and watchmakers prefer loups, but I just don't see the advantage of monovision. Perhaps it is just tradition?
Everyone has their own preference when it comes to eye glasses; the only thing I will say is you need a few with various different magnifications. I would look at good watch/clock suppliers for these items. One little tip, if the eye glass fogs up, drill a tiny hole in it.
Those hairspring vibrators are extremely hard to come by, i have been trying to get one for the last 2 years, i saw one once listed for $400 on eBay and it was sold in minutes I didn’t even have time to click buy it now. Video slow motion is really the easiest way to do this.