The Heuer Cortina is an interesting style of timepiece, in the late 1970s Heuer was changing and upgrading models on a frequent basis. The octagon case was very de rigueur, the integrated bracelet and octagon case has made a comeback and reemerged as a highly prized style. At the time, this was very much a 1970s style that was in demand.

The 39 mm octagon case that merges into the single link integrated bracelet, the upper case is brushed in a concentric pattern, the case is a pretty good size for most wrists. There was a blue dial reference 510.513, matte black painted dial reference 110.233N with index markers and white enamel dial reference 110.233R with roman numerals. The flat single link bracelet is a style I like, merges seamlessly with the case, the bracelet links are brushed as well.

The Calibre 12 was used in a number of Heuer models beginning with the Monaco in 1969, the left-hand crown and right-hand pusher to operate the two chronograph sub-dials. The Cortina had a black dial [Reference 110.233N], blue dial [Reference 510.513] and white dial [Reference 110.233R] variants. The blue dial 510.513 with the sunray dial and day/date at 3 o’clock position works well. The sub-dials are located at the 6 o’clock and 9 o’clock positions and the orange second hand and 6 o’clock sub dial.