4. THE CARRERA FOLLOWS THE HEUER BRAND DNA.
By removing extraneous details, more space was created on the dial of the Carrera, allowing the chronograph to be easily read. True to the Heuer brand DNA, it was modern and avant-garde. The first Carrera had a 36mm steel case, a Valjoux 72 manual winding movement (ref 2447D), and the Carrera logo with the traditional Heuer logo in a box beneath it.