Question about rolex buckles

[rolex_DateJust]

I know there are 18k solid YG buckles and buckles that are gold plated and have PLAQUE G engraved in the back.

I'm pretty sure there are WG buckles as well but my question would be... Are there any SS buckles? If there are any SS buckles, what do the genuine ones say on the back compared to the fakes?

I'm interested in finding out where to source one sometime after Christmas so I can put my datejust on a nice leather strap with the genuine buckle. Even if I order one through the AD or send the head to RSC so they can offer me the band/buckle, I would love to know if there are in fact SS ones or if it's only YG and WG

Thanks in advance!!