166.721 crystal

Hi,

Does anyone know the correct omega crystal part number for the omega Geneve 166.721? I have looked extensively, and the case and crystal pasts list frequently referenced on the forums here doesn’t have it, and as it’s such an uncommon reference, there’s really like 4 posts on the forums about it in total.

Most sales online even say “it’s the original crystal, but it’s unsigned”,

According to my rusty vernier calipers and bad eyes., it’s ballpark 32mm, which helps no one.

Are you sure of the case number? It comes up as "no results found" on the Omega Extranet...

Yes, it’s a Japan only Geneve, Ash did an article about it,
https://stories.omegaforums.net/japanese-shibui-the-geneve-166-721/




My particular case

Okay - still no result though...

I appreciate you looking there. I wonder if there are watchmakers in Japan, or if it may be a case of having my watchmaker measure more accurately