Although the first Czechoslovak wristwatches had already been born, their name was still not determined. The unofficial working version originally counted on the name Kotva and from 1954 on, the name Spartak started to be used, after the name of the classical hero who led an uprising of slaves against their masters.
In the end, decision was made that the wristwatches would bear the same name as the other products from the factory – for this reason, wristwatches labelled PRIM awaited customers in the shops from 1958 onwards. In the meanwhile however several thousand wristwatches with the name Spartak were manufactured, these being a very valuable collector’s item to this very day.