Thanks! I only really work on these things as a hobby in the evenings so it took a few weeks. There’s also time in there sourcing parts and waiting on shipping (like getting that chrono hand from Japan Yahoo Auctions).
Disassembly, cleaning, repairs, reassembly, lubricating, regulating, and testing probably took 8-12 hours for this one. Some of the clean up, rust removal, and polishing/brushing took some extra time compared with a simple movement servicing.
I have a basic full set of watchmakers tools - I don’t have advanced tools like a jeweling tool or lathe. But I hope to continue pushing the limits of what I can do.
I have learned thru online courses, forums, walkthroughs, books, practice, and LOTS of mistakes. I probably could have avoided some of that by taking an in-person course. Maybe I will someday soon.
I started on an Asian 2836-2. Cheap and parts are readily available. I fully broke (literally) it down and rebuilt it several times.
Good luck learning! Dive in and try it. If you have any specific questions I’m happy to help.