OK, it is time for the great reveal. Here's the watch.
Here is the clue you've all missed... Ties to one of Rolex's movement suppliers. Alpina, in its Alpina-Gruen Guild days, was as a part of this cooperation tied to Aegler. Alpina, Gruen and Rolex shared movements, including that of the Rolex Prince. Kevco was almost there with the Gruen guess.
Here is one interesting technical feature...the bumper auto. In-house Alpina calibre 584:
And here is another...
The case is an all-steel Taubert Vacuum. The original crown with the triangular Alpina logo is still there.
Tomorrow I shall post the full verbal onanism about the watch, and good pictures taken in the daylight.