Iīm affraid I donīt know it.
I had a quick lool at the instructions : ( http://www.gossen-photo.de/deutsch/foto_service.html )
They mention the 5° and the 1° reference circle in the finder but no words of any values being displayed, so I assume thereīs nothing there. To me itīs a bit of a design flaw, itīs a pity. Initially you may not worry about it, but I think that, sooner or later, it turns out to be a nuisance.