billving
·Patek Philippe's guidelines have changed over the years so you need to clarify it with the relevant service center in your country (not your AD). They are stricter now about customizing or changing dials/hands for regular customers, if you are a very good customer they will do lots of custom stuff, but those kinds of customers aren't hanging out on these types of forums. I believe the 3970 goes back to Geneve for service as standard practice. Most collectors would not change the day/month wheels because it changes the way it came from the factory, and how it is shown on the internal books of the company. We all know how people freak out here when something is not original from the factory, the same will be true for the PP in the future. If it doesn't bother you that's fine. So just check with the service center and be prepared to open your wallet for a complete service and changing of the wheels.....and a long wait.
In US, Stern does the 3970/5970 etc. Vintage goes back to Geneve.