Thanks again :) Since acquiring this watch I have been reading various writings and offers for sale on a model like mine.
Some sellers actually claim that MH bezel warrants a higher price because there are less Siffert models with MH bezels...
Would any of you here concur?

: A defining feature of the "Siffert" (Reference 1163 T)
: is the Tachymeter bezel. Having said that, it seems that a
: customer buying the watch -- back in the day -- could have asked
: the dealer to switch out the Tachymeter bezel, for an
: "MH" bezel. Some prefer the MH bezel, as it is
: actually more useful for timing things, on a day-to-day basis.

: All else being equal, I would say that a Siffert may be more
: desirable with the Tachymeter bezel, if only because more
: collectors will want the watch with that bezel.

: Jeff

: +++++++++++++++++++++++++++++