Fossil watches typically have the model and serial numbers on the back of the watch case. The model number typically starts with two letters followed by four numbers. It's really hard to tell just by the pictures.
Hmmm...I've not heard the term “souvenir quality" before. But by the time quartz watches started to appear, Timex was having a hard time appealing to the young people just getting their "first" wrist watch. In 1984 Fosssil watches had arrived to pick up the slack between Timex and the more refined "adult" watches. Fossil boasted the modern quartz movement, designs that were more appealing to teens and twenty-somethings, and their low prices were considered affordable by EVERYBODY.
I'd equate FOSSIL with the Pulsar brand that is made by Seiko. (Note: Do not confuse Pulsar by Seiko with the Pulsar watch made by Hamilton. They're totally different animals.)
For the most part yes, but not totally. Their current website features maybe 24 models that run on a mechanical movement. And back in the mid-1990s (according to the Wall Street Journal: Fossil Goes Luxury With ‘Swiss Made’ Label - WSJ ) Fossil tried to go upscale with genuine Swiss made watches. (not sure what happened to that idea...maybe Fossil's COO decided to take the company in a different direction!) But I agree that for the present time, they basically are just a "fashion watch".