hunting for discarded movements for practice

Hello members , nice sunny day here, I decided to visit one of the gold and silver buying places near by , I visited before and actually I found some nice omega movements like the 620 and 660 for $5 each , that was then, now that I’m trying to go little deeper into this Hobby, which gives me much joy, I’m working on my 30t2 watch movement lately , but I thought the would be wise and practical to learn the art of disassembling and assembling movements by practicing on something that was almost destroyed and discarded, today I found these movements that are bigger size so easier to maneuver with tools around the parts , call me crazy , this was my idea of learning without the guilt of I break something , these movements are in perfect working order, stems are missing as she cuts the movement out of silver or gold cases , and breaks the beautiful porcelain dial, anyhow , this is my idea of getting better at this without the stress , ah ha , I paid $10 for each of those,what you think guys, is this something silly out off ordinary what I’m attempting, please don’t hesitate to criticize if deserved, good happy day everyone, regards, kazd 🤗❤️♎️

I mean, if you really just want to practice, I would strongly recommend going for movements with good parts availability. There are plenty of cheap watches with simple ETA movements out there that might do the trick.
The Omega 620 and 660 are pretty small for beginners, but especially the 620 is fairly simple and straightforward, plus parts are still relatively easy to find.

Although these pocket watch movements don't look too bad (hairsprings seem fine, etc.), once you run into an issue, it might be difficult to find everything you need, like a mainspring, minute hand, or other replacement parts.

It also would have been nice to have cases to go along with the movements, but I guess that's part of the $10 deal.

Good morning, thank you for your kind reply , yes the ♎️ 620 is very small movement , I actually revived omega tank watch by installing the movement from the salvage place haha,that I got for $5 years ago , it was straight forward project as the movement was in perfect working order ,so just a movement swap , the pocket watch movements I decided to acquire to practice my screwdrivers and tweezers handling as the screws and wheels are bigger size , at $10 each can’t go wrong , and they are working (some of them , stems are missing but the Waltham ones you can set and wind with a screwdriver, now I’m I search of idea how to utilize them into some creative way , is it possible to 3D print something or carve out of wood and make an interesting sculpture 😄🙃