In the 1960’s, Heuer produced a series of “Economy” chronographs — models that did not have names (such as “Autavia”, “Camaro” or “Autavia”), and which were usually in chrome-plated cases. Heuer produced several of these “Economy” chronographs on a private label basis, for Aristo, Clebar, Hamilton and Zodiac.
In the late 1970s, Heuer produced a version of the Daytona chronograph for Aristo. This chronograph was identical to the Heuer Daytona, Reference 110.203 B, except for the name on the dial and movement. The Caliber 12 movement is marked TBD.