Strangedream
·It really depends on if you want to flip the watch in the future.
Flip: Don't replace any parts.
Keep: Go nuts and let Omega refurbish the watch.
Unless the case is damaged to the point of compromising water resistance, I would not let Omega replace the outer/aesthetic parts. I would also forego polishing since it alters the original design and I know too well I'll scratch my watch again.