IMHO, yes, I'd say it's overpriced, as for that money you can get a 'proper' Automatic Siffert.
The insert is a MH - ie. Min/Hour, so the description shouldn't have a 'T' (Tachy) in it.
These models commonly came with both T & MH bezel inserts.

Stewart

: First off I'm a know nothing newb, that has just done a little
: reading.
: So if i'm being a idiot please tell me.

: Been looking for a 'siffert' for some time now, I came across this
: the other day.

:
: http://www.christopherstoner.com/index.php/heuer-autavia-73363t-sifferrt.html

: Am I right in thinking that the dealer has hugely over priced this?

: Also is that Bezel correct for a 73363T, as i've not seen any
: others with it?