US fans are barely exposed to the comics produced in the UK. Sorry, but it’s true! Outside of Captain Britain, I can’t think of a single Marvel UK character that popped up in the comics produced over here.
But worry not! Rob Kirby is writing a book just for you:
http://a-distant-beacon.blogspot.com/2013/07/fine-tuning-from-cents-to-pence.html
As far as WATCHMEN…well, there are a ton of excellent DC titles that aren’t referenced in the book. There’s only so much you can fit into 500 pages.
Man, I want to read that Marvel UK book more than is healthy. Those comics – especially the early 1980s reprints – were weirdly omnipresent as a kid, and because of that, an important part of my childhood.