WTB or WTT Patek Philippe Gold Buckle

Looking for a vintage Patek Philippe buckle, either 14mm or 16mm in 18k yellow gold. This is for a vintage Calatrava from the 1960s. Could be flat or the classic Patek Philippe Chevron. I am willing to buy outright, or trade with a genuine Omega 18k 16mm Yellow Gold Buckle I am not using +cash on my end. Let me know! I have bought from a few members here before.

If there is a decent gold plated option, I may also be willing to go for that since I know a few vintage Patek Calatrava also used gold plated buckles, but still genuine.

Thanks!