The bezel is fine, even if earlier imho.
These watches were produced for profit and it makes financial sense to use up the old parts even as new executions are released.
I have a Carrera 1153N bought from the original owner who wore it for 10 years and then put it in a drawer. Never had it serviced, bought by him in 1971 the watch has first execution dial and hands, later tachy scale and a Calibre 12. If we follow the reference table that makes it a bitsa but it came out of the factory that way.

: Thank you for the reply. What is your take on the bezel? Since the
: 7733 movement indicates that it was a later version the chance
: of it having a Mark I bezel is small?