Tudor 79090 case - polished or not?

[EmilPDK]

Hey guys :)

I recently bought myself a 79090 Tudor submariner and I am really happy about it!

The thing is, I am trying to determine, whether the case previously has been polished or not. I can still see the chamfers in some angles, but I am unsure wether they have been touched.

This is why I try to reach out for your insight I would be very happy if somebody a bit more knowledgeable than me, would take a look at the watch:

http://imgur.com/a/5JGOj

I tried catching the case in as many angles as possible.

Thank you in advance!!