I would send it to Omega for a quote only. If the quote comes back saying they have to replace the dial or hands then run far far away.
The tritium dial on your watch has aged to a beautiful custard colour and it is the centrepiece of the watch. Omega will want to replace it with what is called a service luminova dial and it will never age like a tritium dial.
If they want to replace the dial, I would suggest taking the watch back and going to an independent watchmaker who can retain the original hands and dial for you.
There are plenty of good independent Omega watchmakers around the world, and I’m sure this community will be happy to share recommendations if you advise of your location.