Hi Jerry,
That looks like a very nice watch and is far too good to be practising on. I would have it repaired by a professional and buy some very cheap watches from Ebay to practice on, when you can take them apart and put them back together then it might be time to move onto something better. Watch repairing takes a long time to learn and you cannot run before you can walk, practice, practice and more practice is the key to success.
Nearly forgot, Welcome to the forums.