Where to repair and get parts?

Please Delete

Grey market, ebay, be prepared to pay topdollars for these parts. Original is not anymore available from Omega itself, so probably you end up with a used one or use the replacement crown as is now in the list. With a different shape….
Glass probably available as genuine, very expensive or replacement without the omega logo.
Are you missing one the minute hand too?
My advise go to good watchmaker he can help you, maybe 1% of the watchmakers do a bad job, they are the ones always mentioned. 99% is a craftsman proud on what he is doing and can give you an honest advice.

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One part less to source… maybe some new, property colored lume?

Where in the world are you?
Which side of the pond?