Thank you Bodo for this valuable information. I am currently hoping to restore a 6105-8000 proof/proof. The dial is beautiful but the bezel has signs of years of abuse. All it needs is a nice bezel insert. I was asking because I was hoping to use a 6105-8110 insert to replace existing insert.No, they are different. Different click mechanism, the 6105-8110 bezel uses a click ball mechanism and is bidirectional, the 6105-8000 Is also bidirectional, however it uses a spring surround which provides friction and doesn't click.
The sizes are also different.
Taken from here.
"Bezel assembly outer diameter = 39.41 mm (I am using a digital caliper
Bezel insert width = 3.43 mm
On the 6105-8110
Bezel assembly outer diameter = 40.60 mm
Bezel insert width = 3.60mm"