According to MWO, your watch used 4 different bezels (B2, B3, B4 and B5) over it's 8 years of production. If you want the exact correct bezel, you need to do some more research.
I've just sold three of those here. Keep watching the parts section, they pop up for sale time to time.
I have a few B2 inserts but are all service replacements as well. Not sure if this fills the bill. Message me if interested.