OEM crystal for vintage connie

Recently bought a vintage white gold c case connie reference number is 168.009. The crystal that's installed in it is a generic replacement, so I'm starting to search for an OEM replacement. From my very basic research, I believe the part number for the crystal should be PX5022? If so I see that some have gilt/yellow tension rings while other I believe have silver tension rings. Because the watch is white gold, should I be searching for a crystal with a silver tension ring, or does it not matter?

You have the correct number. Since you say white gold, you definitely want the silver tension ring.

Some yellow gold watches have come with silver rings too, but I think the dial influences that decision.

According to this site: https://boley.de/en/case-parts/omega?l=13&p=36, the part number for the crystal is actually PZ5022 not PX5022, can anyone confirm/ deny this?

Yes, PZ. I didn't check that part, sorry.