I would say thats fairly accurate. I have two Mark 1's, and in my time looking for them I have only seen a handful of the Mark 2's. Personally I prefer the look of the earlier one so I never pursued the Mark 2's...but I would say in the past year I have seen 4:1 ratio of Mark 1 to Mark 2's
Oddly both of my Mark 1's have serial numbers only 100 apart, yet they came from two different ends of the world.
Serial numbers 109010 and 109126

: Ok, guys . . . here's a question that I have been thinking about
: lately: Is it just my imagination, or do we see a lot more of
: the Mark 1 Ref 2446C Autavias, than the Mark 2 Ref 2446C
: Autavias? [Mark 1 has the black and white dial; smaller teeth on
: the bezel; smooth pushers / Mark 2 has red accents on the dial;
: larger teeth on the bezel; and fluted pushers.] Below you will
: see a Mark 1, on top, and a Mark 2, below.

: My feeling, not backed by any survey or detailed information, is
: that for every Mark 2, we probably see four or five of the Mark
: 1 models. Is this correct? What do you see? How do we explain?

: Perhaps the Mark 2 had a shorter run, as Heuer moved to the
: automatic Autavias and the C-Shaped case, for the manual wind
: Autavias.

: If anyone has a Mark 2, please show it, with bonus points for the
: serial number!!

: Jeff

: