It could be just an event, but since October 25 is special to Lange I think they will present a new model.
By: lm6 : October 1st, 2021-07:28
The railwaytracked scale bear a close resemblance to those they use on the 1815 running seconds, so maybe something in that family? Can the outermost line - that you only see part of in the corners - be a sign of some part of the dial beeing of-centered? Intriguing!