DC did a good article on this last year -
http://www.calibre11.com/heuer-autavia-diver-100-secrets/
Incidentally I bought the bezel and wear it on my regular 11063 to add a bit of colour :-)
Cheers,
AndyO...

: I think that the bezel variant shown by Peter is from Heuer.

: In cases like this, I like to use "Occam's Razor" - the
: simplest theory is most likely to be correct.

: Consider the two possibilities:

: 1) The bezel is an aftermarket fake: A guy decides to make an
: aftermarket fake SPECIFICALLY for the Diver 100 (I've never seen
: this bezel on a regular 11063 Autavia). He is enough of an
: expert to make the bezel insert fit perfectly into the 11063
: bezel. He is also obviously a bit of a Heuer expert as he
: understands that this is a diver model and the 11630P diver
: model had a special bezel, which he decides to copy, but it
: never enters his mind to copy the actual Diver 100 bezel.

: 2) Heuer made a specialist bezel for the Diver 100 which looks
: really cool and suits the watch but it is not in a catalog.
: There are many other Heuer variations which are not in a
: catalog.

: I am pretty neutral, because I dont own a Diver 100 (of either
: variety), but I just find hypothesis (1) too strange to believe,
: whereas (2) is very easy to believe as we have seen this happen
: lots of times with Heuer - even catalogs with incorrect
: pictures.

: Anyway, thats my view. If I ever buy a Diver 100, I'd prefer one
: with the "P" bezel insert....

: Shaun