Rolex may make their own movements, but I believe that much of the rest of the watch (hands, face, etc) are actually made by the Stern group, and have been for many years. Real second hand value is often different to what is banded about on "boards" go take your Daytona down to a watch shop and see what they'll really give you. If you have never worn it, and kept it in a box, maybe its worth a lot, wear it regularly and forget about those great prices.

There is also a difference between Panerai and Breitling. You are right that Breitling was a "recreation", I do believe however that Panerai always made watches, although in incredibly small and insignificant numbers over the years.