Interestingly, if you'd like to see a really cool site that showcases how these crap Tissot movements work, just click the link at the top of this page.
(The Powermatic 80 movement in the entry-level Tissot models is a modified version of ETA 2824 which Ciechanowski is showing on his site.)
The "gateway drug" these days seems to be Tissot PRX. Their quartz models are about half the price of their mechanical ones.