The efforts of V. Klement in putting a simple, reliable automobile fulfilling the requirements of the widest possible range of customers, into production led to the creation of the S model range.

The first vehicle with a liquid cooled four-cylinder of a cubic capacity of 1771 cc and 14 horsepower had many original structural elements and was first introduced to the public in April 1911.

The S type was not only successful on the national market but also in Russia for example. More than 600 examples were manufactured in Mladá Boleslav by the beginning of the First World War. It was subsequently manufactured in many continuously improved versions until 1925.