Interesting comparison...but, isn't the Debaufre 42 mm?
I think that was part of it. The lume on the hands and numbers is thicker. In looking at the watch I also had the impression that the angle of the ring and the dome of the crystal made that lume appear a little darker than it really was. It was quite interesting to see the watch from different angles as it moved in low light.so the lume on the hr numbers and hands is a lot bigger than the 25 hr chapter ring?