The Sherpa Graph was the origin of Enicars famous tool chronos for racing, diving and flying. They were introduced in 1960, three years earlier than any other Graph variation.
Since Enicar made a clever advertising move, the Sherpa Graphs were widely used by important racing drivers like Sterling Moss or Jim Clark,…years before Heuer did the same. Thats why Enicar chronos today, have such an iconic reputation.
Since the Sherpa Graph was the first and build till the end, this series has the longest manufacturing period (1960-69).