If it was me I would put that watch away until you get some tools together and a couple of cheap movements to practice on. You will not be the first or the last person to have bought a watch or clock from someone who claims it has been “recently” serviced. This is an amazing hobby and you will soon know when you feel ready to tackle that watch. Just as a quick check, look at the watch pivots through a 10x loupe (or any strong magnification) to see if the pivots and holes look clean and that they are not moving about in their holes too much.
We will of course be on hand to help whenever we can.