If you want to do more than that, get the watch serviced and a refinish will be included in the service price. This applies to Omega factory service and many other authorized independent service centers. If they are not Omega authorized, they won't necessarily have the machines and fixtures recommended by Omega.
@Archer is one of these authorized independents, and he will no doubt have advice well worth heeding.
Looks great as it is..😀 I also own that model in the past and I am sorry that I have to sell it a few years ago. In fact I am sorry for every watch I have to sell.😀