After a few years playing friendlies against other Innsbruck sides, the club was put on hiatus until 1918 because of the interruption of the First World War.On 20 July 1971, FC Wacker Innsbruck and SV Wattens, also playing in Austrian first division, merged to form a single team called SpG Swarovski Wattens-Innsbruck (SSW Innsbruck) in order to focus the football power of Tyrol better.The union applied only to the professional footballers – the junior sides of both teams carried on as part of their original clubs.SSW Innsbruck won the Austrian Championship five times and reached the quarterfinals in the 1977–78 European Cup.In the same year the FC Swarovski was dissolved and Wacker regained the Bundesliga license and access to the 1992–93 UEFA Cup.