So, I saw someone say somewhere that a change in regulations now requires diver's watches to have lume on all 12 hours in order to call it a diver's watch. Change to ISO 6425? I can't find anything official on this topic.

Anyway, we've been seeing small lume plots added outside of the date window in an unbalanced manner on new versions of old diver's watches, as well as date windows between the indices. Not to say that either of these things is a deal breaker, but I feel like if Seiko were…

Diver's Watch Regulations Affecting Design/Reissues