Certina Biostar Electronic (1974)

Ref. 7501 001 | Calibre Certina 28-353 (ESA 9154) | Diameter 39mm

This model, which measures your biorhythm, is a worthy representation of the roaring 70's. During this decade there was a huge interest in mankind and his well-being. Certina invested in a wristwatch with an ideal fit to the anatomy of the hand, the Certina Revelation, and in the Certina Biostar.

German ad 1973


The Certina Biostar series

The Certina Biostar was produced from 1965 until 1974 and came in the following models and references: 

7301 050 | manual winding | round case | cal. 28-163 | 1965 - 1970

7501 001 | electronic | c-shape case | cal. 28-353 | 1971 - 1974 - stainless steel

7506 001 | electronic | c-shape case | cal. 28-353 | 1971 - 1974 - gold plated

7501 050 | electronic pocket watch | 1971 - 1974

721 3549 25 | electronic desk clock | 1974