The Heuer Carrera was launched in 1963 soon after the Autavia. This case design however was the antithesis of the Autavia with a more dressy and smaller 36mm case. This design continued right into the next decade and although the case designs remained essentially the same customer demand led Heuer to develop a vast array of exciting dial combinations and finishes, far more than those found in the Autavia models.
A certain number of first execution models, such as the present lot, featured a blue decimal track, where each minute is subdivided into 100 equal intervals. Although Heuer had previously utilised this scale in certain pocket watches, there was less of a demand for a decimal scale in wristwatches and as such it remains one of the rarest dial features and certainly adds a further dimension to the watches desirability.