In my case, I just got a little ahead of myself. I'm still very much a beginner, but I couldn't wait to tear into that watch. I could buy a brand new Seiko SNK809 for about $50 and use the movement from that one, but I'll learn more and hopefully have more fun rebuilding it myself and replacing parts as necessary.
I look at watch restoration as a hobby not unlike classic car restoration only it takes a lot less space and money.