: Do you know of a good resource where I can learn more about things
: such as
: - differences between first and second execution dial, hands
: - what sub register hands should look like
: - when crown became signed
: - what chapter ring should look like (how do you know it is a
: replacement?)
: Right now I refer to lots of different posts, but just wondering if
: there is one spot I should look to educate myself
: Much appreciation!
: TS

I am very much a novice compared to most here, but just keep checking back and reading as much as you can. There's a ton of great information in the OTD main site and blog as well as the Master Reference Table. Other resources I frequently reference for information that you're seeking are:
This thread is pretty useful in breaking down differences. Also just search "carrera" and read old posts: http://chronocentric.com/forums/heuer/index.cgi?md=read;id=59151

Eric's article is always a good one: http://www.hodinkee.com/articles/understanding-the-earliest-heuer-carreras

Mika's site is a pretty useful visual: http://www.vintageheuercarrera.com/

And of course Richard's semi-annually updated price guide: http://www.heuerpriceguide.com/#/buyers-guide/4561783359

-ct