The founder Josef Sieber has managed the company until 2000. As a technician he has run the business with huge skill and experience.
His two sons Reto Sieber, watchmaker and Operation Specialist, and Daniel Sieber, economist from the University of Applied Sciences (FH) and eMBA from the Universities of Zurich and Stanford
(USA) , supported Josef Sieber during all these years which in the same time guaranteed the continuation of the long-term activities of the company.
is now Chairman and Delegate of the board of Directors
Managing Director of the company and Member of the Board.