Watchmaking is not for everyone. That said, if you are patient and determined you can do just about anything. I suggest watching some of Mark Lovick's videos and order a cheap watch with a 2824 movement you can play with and see how you like it.
http://greekdimis.blogspot.com/2014/...-2824.html?m=1
One of the biggest challenges I faced starting out was mastering the reinstallation of the click spring. Here's a pic from the linked video showing Mark installing a click spring. He dies it in a second and makes it look easy.
The first 4 times I tore down a movement I lost the click spring. It is is so small and you have to put tension on it to install the click next. ZING! It shoots off across the room! Talk about frustrating and defeating. Your project just got sabotaged, you are dead in the water. I found the lost click spring ONCE, the rest are gone baby gone.
Click spring replacements cost $6.80 from Otto Frei, plus $9.40 shipping. $16.00 for a tiny piece of wire not worth 16 cents. They are so elusive that even my shipment of 3 was missing one, I was painstakingly careful opening the vial they came in.
While I was awaiting shipment I determined to find a way to succeed at doing this. I made a contained workspace like you see in sterile assembly lines. So far it has worked every time to contain my flyaway parts. Since then I have developed an approach that minimizes the flight risk, but it's always an apprehensive part of the rebuild.
Hope this helps you decide if you want to do this. There are other challenges like removing hands without scratching them or the dial, or bending the hands, etc. But there is a also a great amount of satisfaction in wearing a watch you have completely serviced by yourself.
Best of luck,
KJ