Locomotive Ge 4/4 III # 644 "Savognin" of the Rhaetian Railway is leaving Bergün with the Interregio 1125 from Chur to St.Moritz. The locomotive has a publicity paint scheme (adhesives) for the world record trial for the longest passenger train (1910 meter), taking place in the Bergün region on october 29th, 2022. 25 coupled "Capricorn" trains, each 76,4 meter long, are intended to run from Preda over Bergün and Filisur to Alvaneu over the UNESCO world heritage Albula/Bernina line. The train will travel about 25 kilometer with 30 to 35 km/h, loosing 789 meter of altitude. The train weight will be 2990 metric ton. This world record trial is part of the celebrations for 175 years railway in Switzerland and the costs are mainly taken over by sponsors, first StadlerRail, which delivers 56 "Capricorn" trains to the RhB.