Here's a pic of mine...

: Ah, my mistake, I saw "fluted" and read pushers, sorry.
: Missing fluted pushers isn't so much of an issue, as they are
: readily changed and somewhat available.

: Registers that aren't ridged however, can be more of a problem -
: this is often a sign of a refinished dial as the rediallers find
: it easier to paint on the flat surface than over the ridges.
: There are some exceptions, like Arno's tropical Carrera
: prototype:

:
:

: Have you been able to check the watch in the metal to see if the
: ridges are actually absent? They are quite fine and tend not to
: be as obvious in photos on the black registers as they are on
: the white. And finally, any Siffert expert able to confirm that
: they should always be ridged? I'd expect to see them myself, but
: mine is more a passing interest in Autavias so it would be good
: to get word from an owner or two.