

The tachymeter bezel is a logarithmic scale that measures units per time increment.įor example, to measure average kilometres per hour in a traffic light drag race (ahem) you start the chronograph when you take off and then stop the chrono once you have travelled one kilometre. Heuer Autavia 11630T by HeuerTime Perhaps the most iconic bezel given its direct link to motor racing. It was the first watch to be fitted with Heuer’s Chronomatic Calibre 11/ 12 movement and the last. While the Carrera began its life as a wristwatch, the original Autavia was actually a timing instrument, specifically a a dashboard timer for rally cars, as Jack Heuer explained in his autobiography.

Heuer Autavia 2446M by HeuerTime And while the Carrera was, in substance, cut from the Heuer range in the 1970s, the Autavia was the heartbeat of the collection through to 1985 when the curtain finally came down on the Heuer brand. Taking its name from a combination of its target markets (“ AUTomotive- AVIAtion”), the Autavia wristwatch was unveiled in 1962 and was the first new model launched under the guidance of the company’s then-new CEO, Jack Heuer. The 11630 didn’t replace the 1163 though, much as the third generation “barrel” Carrera didn’t replace the second generation. It’s interesting to note that Heuer had also introduced the 11630 Autavia in 1972, with serials starting 259xxx. And while the Carrera was certainly important, it was in fact another model that had the real sporting heritage and authenticity- the Heuer Autavia. Reading the history of Heuer as it is usually written today, it’s easy to get the impression that the Carrera was the series that really established the brand’s credentials as the leading maker of racing-inspired chronographs.
