Like Sinn, SUG tries explore the potential of new materials and some of the more recent Sinn innovations were made possible because of the close links between the two companies. While not all Sinn models use SUG cases, those that do carry the SUG logo you mentioned.
In 1999, Walter Fricker (owner of the watch-case company Fricker in Pforzheim, Germany), Ronald Boldt (former head of technology and quality assurance at the German luxury watchmaking company Glashütte Uhrenbetrieb) and Lothar Schmidt founded their own watch-case firm, Sächsische Uhrentechnologie GmbH (SUG) in Glashütte. Walter Fricker is no longer involved in the firm. Besides Sinn Spezialuhren, other well-known watchmakers make up the main customer base for the cases.
