Let's just say hypothetically (of course) speaking, I disassembled my watch before the power reserve ran out. As soon as I removed the escape wheel I heard the main spring unwind in a split second. Somewhere along the lines, when trying to get further into the watch I broke what I guess would be called a staff on the pallet fork, so it no longer has the tiny piece to put into the bottom of the watch. I know I definitely need a new pallet fork, but did I destroy my main spring too? When I try to wind it theres no resistance and it just clicks. Guess I should have started learning with a book and not hands on. I also cant figure out how to get a model number from this elgin pocket watch. Theres a number on the movement but it appears to just be a serial number. 5370447 I dont see anything else that could identify it. Also, the reason I started taking it apart in the first place is while I was moving the lever inside the movement to regulate it it stopped running. If I moved the balance wheel myself it would run for 5 seconds to a minute then stop. What caused this in the first place? I know about elgin's serial number lookup and my serial number works for it, but what does this mean to me as far as getting replacement parts? I'd like to get it fixed, serviced and running but I dont want to break the bank doing it.