His research is certainly better than mine, but I think the conclusion that these are for some post 11063 Diver version might be exciting (another series of classic Autavia lost in the Heuer vaults?) is seems unlikely. From the outside, it seems more likely that at best these were an alternative bezel for the Diver which never sold (good example of this is the Deci bezel for the first execution Autavias - not in any catalog, but 100% Heuer from the period the watch was produced); at worst these are Heuer "service" bezels produced as a replacement for the Diver... that's my guess anyway, and it is a guess.