I bought this for peanuts as a non-runner and my watch guy had it in perfect nick in no-time:
Sadly that's not always how it goes. I bought this dead Tissot to get it repaired. After a watchie held onto it for a ridiculously long time he quoted me a ridiculously large sum to get it repaired. Fed up with the situation I then gifted it to a more technically adept forum member. With one new part from the Bay and some fiddling he got himself a perfectly fine Tissot: