Buy some polywatch for the inevitable scratches you'll get on the crystal. Just having a clear crystal goes a long way to keeping a watch looking good.
I got my first vintage omega and I want it to look as nice as it does now for a long time does anyone have any tips
Welcome!
The fact that you're concerned with being a good steward is a sign that you're on the right track.
If you plan to store your watch for any length of time, I recommend making sure to keep it with a silica gel desiccant packet or two, just to control for any fluctuations in humidity, since older watches are often rather susceptible to moisture ingress.
I hope you enjoy many years with your new old watch!
My advice is not to take close-up photos of your watch, best in fact is to use a lens of 1.0Megapixels or less. Photographers who can never get a watch in focus are helpful too. We get some posting here, particularly with a uncle's or grandfather's watch to sell 😲
Do proper servicing 5-7 years, keep it away from water and humidity, be careful going through doors, and most importantly -- enjoy it, wear it, and understand that it's going to get some scratches no matter what you do.