Heuer Carrera Chronograph Cal. 12 Ref. 110.573 with Rare “Automatic” Box 18 reference 17010

reference 17010

with extra thick dial (1mm thick instead of the usual 0

- IWC calibre 89 movement

it cost a third more than a Day-date when launched

Heuer Carrera Chronograph Cal. 12 Ref. 110.573 with Rare “Automatic” Box 18 reference 17010It is a well known story that in 1969, three automatic chronograph calibers were introduced: the Zenith "El Primero," Seiko's Caliber 6139, and, last but not least, the joint venture between Breitling, Heuer, Bren, and Hamilton, which produced the Caliber 11. These Caliber 11 movements were used in the Heuer Monaco, Carrera, and Autavia chronograph lines. Shortly after, these movements were improved to the Caliber 12, and that's exactly what we have