What year 904L?

[jholbrook]

Greetings R-L-X!

Does anyone know what year Rolex began using 904L grade stainless steel in their watches, and what grade was used previous to 904L? :grb:

[newharry]

I think the current standard of knowledge says: 316L until 1988 with the introduction of Ref. 168000

[Jocke]

Original von jholbrook
Greetings R-L-X!

Does anyone know what year Rolex began using 904L grade stainless steel in their watches, and what grade was used previous to 904L? :grb:

John.

I will say in 1988 thay start with the SS 904L at the last Ref 168000 Sub
with date. Beofre that they use SS 1916.

Jocke

[jholbrook]

Thanks much guys...I see there isn't complete agreement from our respondants on this topic. :grb:

I'm not familiar with 1916L...does it rate somewhere between 316L and 904L?