I wonder if I could ask a question of an expert please!
Do you know whether the 6138-8020 Panda has a crystal gasket please? There seems to be a little confusion on the 'net' as to whether one exists or not.
I have a new crystal for mine but it doesn't seem to sit right even though the retaining ring snaps into place. It looks as if a gasket should be there but obviously wasn't when I acquired the watch in February!