Pics attached.

 

Looks like tritium. luminova is whitish/ greenish initially, and stays that way forever.

 

Trit on a late 80’s mid 90’s piece.

 

+1 Trit

 

Thank you, I tend to agree but wanted a bunch of other opinions.

 

Good call. Its a 90s speedy. That "S" give it away?

 

How about these ones?

 

I would say luminova.

 

Inconclusive but leaning towards replacement luminova.