SSIH (Société Suisse pour l'Industrie Horlogère), originated in 1930 with the merger of the Omega and Tissot companies. Swiss watch quality was high, but new technology, such as the Hamilton Electric watch introduced in 1957 and the Bulova Accutron tuning fork watch in 1961, presaged increasing technological competition.
In the late 1970s, SSIH became insolvent due in part to a recession and in part to heavy competition from inexpensive Asian-made quartz crystal watches. These difficulties occurred even though it had become Switzerland's largest, and the world's third largest, producer of watches. Its creditor banks assumed control in 1981.
See Swatch Group for more information