This is basically a transcription of the page that Scott and Tim tracked down with additional missing names and numbers and a few observations.
1) I am assuming that the early reference to Dia... is simply the named caseback Diastar models. I have never seen a single Diastar with just Dia 1 on the back. With that in mind I know for an absolute fact that the named caseback Diastars go to at least the Diastar 19. I used to have an 18 and Mrs.K still has her 19 and both were named.
2) Three and four digit references as well as five digit references beginning with 0 are womens models.
3) When two consecutive numbers represent the same model the odd numbered reference generally refers to a gold plated version while the even numbered one is steel.
4) Where only an odd number is missing in the list there is a distinct possibility that Rado simply did not make a gold plated model. Where any even numbers are missing I believe we are missing data. I am quite certain their is a model out there bearing that reference number.
5) DD in the charts is day/date abbreviated.
6) Sub variants abound, often represented by a ref XXXXX/1, such as the Jetliner 11735/1, where the watch is generally identical in appearance but has changed in some way such as a different movement. If you know of any add them to the list or let me know fof their existence.
7) Anyone entry with a brief dscription is an unamed model.
Trivial notes of interest.
There are three sizes of Cape Horn; the womens, the mens and the small.
There are separate references for the Diastar 10s and the Diamaster 10s, not just the different names on the dial.
What the heck does the ref 11901 Newtronic Crystal look like?