masterspiece
2031
Watch winder.
I am one of those of the opinion that don't really favor a watch winder...with the exception of a perpetual...and then, maybe. 
The obvious reason for the winder is so it doesn't have to be set again if it stops. But, that, in my opinion, is what being a WIS is all about. I know that Patek does supply a winder with perpetuals but If I am reading your post correctly, to have the perpetual on a winder for five years straight (in constant motion) is a long time.
As Dr. Koi mentioned, it is time for you to send it to Patek for servicing. When you get the estimate for servicing, do not be surprised at the cost. However, don't cut corners. Make sure you send it to an authorized Patek service center.
Aloha,
Bob
Advice on buying a use PP
Hi, I am considering buying a 5 years old perpetual. The owner says that it has nearly never worn it (this seems true, it is LNIB) and that the watch has spent the 5 years working on a PP winder. I was wondering : spending years working on the winder is f...
Sounds like a nice opportunity
Some people are of the opinion that the watch should stay idle and some want to keep it in a winder. Anyhow, if the watch is 5 years old, you should in every case send it for regular service. After the service the watch is just as good as a brand new one ...
Watch winder.
I am one of those of the opinion that don't really favor a watch winder...with the exception of a perpetual...and then, maybe. :-) The obvious reason for the winder is so it doesn't have to be set again if it stops. But, that, in my opinion, is what being...