Hi Jeff, I need a little help from you. I found a 'non Calculator' but I don't know if is correct the reference number on the case. 110.633 is correct for this 11633?

Thanks in advance for your reply or for the help from the community.

Claudio

: Thank you for the message, and the interesting photos. Here is what
: I know about the MHT (also known as the "Non-Calculator
: Calculator"):
:
: This is Reference 11633 MHT.

: It makes its only appearance in Heuer's 1977 catalog (shown
: below).

: It's a rare one -- to my recollecton, we have only seen one of
: these, over the last few years.

: The "MHT" stands for "Minutes / Hours /
: Tachymeter", because this chronograph has the Minutes and
: Hours marked on the outer, rotating bezel, and the Tachymeter
: scale marked on the inner, fixed bezel.

: It's difficult to suggest the value, versus the normal Calculator
: models. We have only seen one offered for sale; I recall that it
: sold at a discount to the price of a standard Calculator model;
: I would think that this discount arose because of some
: (mistaken) questions about authenticity and some of the
: weirdness factor -- people probably want their Calculators to be
: able to calculate.
:
: That's what I know about these. I will hope that other might add
: information or their impressions.

: Jeff

: