Heuer Calculator Ref 110.663N Cal 12 Automatic Chronograph


Heuer Calculator Cal 12 Automatic Chronograph


Quite possibly one of Heuer’s more obscure but intriguing pieces from the time, certainly the largest, measuring in at a whopping 45mm. The name ‘Calculator’ is quite self-descriptive with that massive rotating bezel that acts as a slide rule and does various calculations. The Heuer Calculator was quite possibly Heuers attempt at the Breitling Navitimer but a bit more utilitarian looking. This particular example is almost NOS with extremely little wear to both the case and bracelet. The watch is housing the infamous Heuer Cal 12 Automatic Chronograph movement. The watch is all original with original Heuer crown, fluted pushers and steel bracelet. Besides the great size, the other thing that draws attention is the vivid orange hands and orange accents on the dial. If you happen to be a Heuer Collector, there will always be a hole in your collection until you pick yourselves up one of these.


The dial is a dark blue in color with a matte texture. The hour markers are silver colored inserts with luminous compound. The Hour, Minute and Chronograph Seconds hands are painted in a very striking orange and the they all have luminous compound. The Chronograph Hour and Minute hands are painted white. There is a minute and seconds track around the circumference of the dial. There is a date window at 6 o’clock

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