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Hi I read a lot of people asking about microscope to work or inspect parts. To help people decide and make their own decision I'll provide here some pictures from it. This is the model I brought. My personal opinion is that it's really very helpful because you have really a great working distance almost 20 cm with good resolution of course if you bring closer the optics you can have higher Magnification. I've chosen to go for X100 because it's more than enough for watchmaking (I'm not a biologist So if you've any question you're welcomed

His technique with metal tweezers is a bit suspect on a battery change hope they were NON conductive.

I like the guide rails for the honing guide. Well done! Here's mine: Slightly different approach. Sapele (body and lid), leather (gasket), hide glue, and garnet shellac, with flush inlaid DMT diamond stones, and a honing strop made of wenge (iirc), steel plate, hide glue, and leather. Lid on is the first pic, coming off is second, and in the third it's attached to the bottom using the same leather gasket that keeps it tight to the top. Guides and such live in the pocket. If I need to use a stone from the side, I can pull it out with the magnet (tool pocket, top left), and the pocket to the right keeps it in place while retaining access to the shoulder. Definite overkill for screwdrivers, but that's not what I made it for. I also do a lot of hand tool woodworking, and keeping blades scary-sharp is a necessity.

My bet is that they ARE conductive! I use Delrin-tipped tweezers for this. I am an amateur mind you...should you dial down on a hard surface and apply pressure to the hands while pressing in the battery? Should your fingers be touching the dial?

But with plastic tweezers, surely.

I personally quite like the look of the dial. It shows age and is still perfectly legible. It can be 'fixed' to look like a newer watch but why bother?!

That a mechanical mov.t runs doesn't necessarily mean that is in good health. At least it should be tested on the timegrapher to looks at certain basic parameters. Are you thinking of doing that yourself? That would be definitely a bad idea for a beginner. The watch you have is quite valuable and worth the cost of service by a reputable watchmaker. Any of the normal mistakes and damage made by beginners could be disastrous.

It'll probably be the small screw very near the stem. Push button releases are more modern. Pull on the crown whilst unscrewing so that you don't completely disengage it from the setting lever.