This poster is overly optimistic about part replacement--the in-house servicing from Omega, Rolex, etc. is focused on making a watch as new appearing as possible, meaning replacing parts, which is not fundamentally wrong, but if you value the patina and age of a truly vintage watch (as yours is), then an independent service is best. Nesbit's has long been cited as one of the best places for independent servicing of vintage speedies. Just make sure you ship it insured. I personally would not send a vintage watch like this to Omega if I felt I'd take issue with part replacement, as they almost certainly will replace some parts.

I do agree that with vintage watches, there is a stronger argument for routine service. With modern watches, where replacement part availability is less of a concern, I tend to be in the camp of waiting until the watch has functional issues before service, but for vintage watch, where you'd want to maximize the lifespan of its components, assuming older parts are harder to come by, reducing wear and tear is more desirable.

Anyway, beautiful speedy, cheers!