Ge 4/4 III # 648 of the Rhaetian Railway, in a black publicity paint scheme for the "Watson" news portal, is pulling the Interregio 1129 from Chur over the Albula line to St.Moritz, between Tiefencastel and Surava. Behind the ALVRA push-pull train, there are 5 empty cars for transfer to St.Moritz, to use for another train of the Vereina line. This is regularly done with the IR 1129.