Thanks Dizzy. I been looking at pics of reps and gens, and the reps are a lot thicker. Someone is going to try to fit a Genuine 4030 dial on the new(er) 7750 with el primero spacing for me. Hopefully this week. So thats a start.
I suspect that it won't fit into a case made for el primero, though. The El Primero 400 is only 6.5mm thick, while the 7750 is 7.9mm thick stock. With the added plates needed to move the gears, 9mm? (thats a guess).
So I can, if I'm lucky, find an old secs @ 6 daytona?
I suppose I could live with the thicker case, at the end of the day, all I want is a modern daytona that's not going to blow up.
I don't want to get in to too many details and get people excited in case it doesn't pan out, but I'm really trying to figure out how to get one made for myself, and if I can, there's no reason it should be the only one