It is managed and operated by SBB GmbH, the German subsidiary of Swiss Federal Railways.

[1] On Mittelthurgaubahn's bankruptcy in 2003–2004, operation passed to EuroTHURBO [de], the German subsidiary of THURBO.

In 2006, SBB introduced Stadler FLIRT trains on the route and increased the service frequency to every 30 minutes.

[4] The name derives from the work Ein Volksbüchlein by Ludwig Aurbacher, written in 1827, in which the Seven Swabians fight a hare.

The Seehas is also a traditional mythical animal of the Lake Constance region, which is often depicted as a hybrid of a fish and a hare, for example on Kaiserbrunnen on the market place in Konstanz.