Tudor Snowflake Bezels

[Hammer2016]

I'm in the market for a 9411/0 94110 Tudor Sub Snowflake. I've been researching here and elsewhere for the things to look out for in finding a genuine watch, and have compiled quite a list on most aspects.

The only thing I've not been able to find any guidance on is bezel inserts. I've seen people comment on them, identifying original/service replacement/aftermarket, and have noticed some variations in my own research, but nothing to guide me on what's genuine, what's not, and what's a service replacement.

I was hoping you guys might be able to help me fill in this blank with some pointers on the things to look out for when it comes to the bezel insert!

Thanks!