Hi Randy,

: I would like some information on the Calculator 110.633.

No answers yet. There are not so many fans of the Heuer Calculator, like you and me.

: I know that is 45.5 mm wide but I would like to know the exact lug
: to lug measurement since the lugs are integral to the case and
: do not extend past the edge of the case.

My unpolished Calculator cases measure 48.3 mm to 48.5 mm in vertical orientation (12 to 6).

: Also what width bracelet or strap does the Calculator have?

22 mm.

: Also on
: the original corfam strap or steel bracelet

Both.

: is the the buckle
: 16mm?

It seems so. I think, there are no 18 mm buckles of that time. However, it's difficult to find straps tapering from 22 mm to 16 mm.

: Final question, how many Heuer Calculators were manufactured in
: their 8 year run from 1972 to 1980?

I do not know …

: I assume the answer would be
: in Amo Haslinger's book Heuer Chronographs, but I cannot find a
: copy.

… and I don't think that numbers were published.

Cheers,

Mick