On the 2019 round trip for the patrons, the iconic RAe TEE II # 1053 of SBB Historic changed direction of travel in Sonceboz-Sombeval in the Jura. The train came from La Chaux-de-Fonds and is due to run via the Pierre Pertuis pass to Moutier-Delémont-Laufen-Basel-Bözberg to Zürich.