I’ve searched the internet but can’t find this insert and wondered what it was called?
I prefer this style over the standard insert.
Thanks!

 

Decimal bezel

https://omegaforums.net/threads/decimal-bezel-on-145-022-69-question.47318/

 

Brill, thanks!

 

Beware, they are now making counterfeit decimal bezels/inserts.

 

And Omega still makes decimal bezels, and pulsometer bezels, and two types of telemeter bezels...