This watch from 80s should have tritium lume marked with T and this is a superluminova service dial. The sellers know this stating it has been serviced and deliberately avoid saying it is original.
I would avoid buying from a deceptive seller.
Plenty of these out there and the tritium lume ages with nice patina that’s one of attractions of this era Speedy.
Edit: and please post photos they stay for future reference links do not. Screenshots are ok.