: Did you find this now or keep it in reserve
: until we felt we had learned nearly
: everything..?

A reader submitted this photo several months; it sometimes takes a while for me to catch up with the postings.

: Related Question: are Autavias, like this one,
: with the "RR grille" markers
: (imagine the old rolls royce radiator
: grille, I thought an automative analogy
: would be good) always indicative of an
: earlier Autavia than the more usual
: "thin rectangle markers" (with
: long thin luminous insert) ?

I think of them as "ridges", and you are correct that the ridged markers pre-dated the smooth ones, with the inserts.

: I thought maybe the ealier markers would
: correspond with a Cal.11 movement but I
: checked a "Siffert" 1163T I have
: with the "RR grille" markers (but
: no Chronomatic) and it has a Cal.12 in it
: now.

: Any views?

I would be surprised if this correlation (Cal 11 and ridged markers / Cal 12 and smooth markers) actually held up. Also, Heuer seems to have used up what was in the parts bin, so most of these transitions happened over time.

: PS: before the flames - yeah I know rolls royce
: is not a marque that fits in a Heuer forum
: but thats the first analogy that came to
: mind.

I'll stick with the "ridges" reference . . . less controversial . . . easier to type!!

Thanks for the message.

Jeff