Get your watch serviced every 5-7 years or not?

[lapince]

I don't know wether it's best to get your watch serviced every 5-7 years, as recommended, or as some say as long as it works and keeps good time don't send it for servicing, especially for pams I have heard a lot of negative or very negative feedback, what is your opinion on this issue?

Personnally I would be more in the tendancy of not sending it as long as it works fine, the 4 watches that I wear the oldest has 1,5 years, of course my 3 pams are much older but i bought them 100% unworn brand new, in mechanical watches I have omega seamaster, 5 years, a very old omega gold chrono handwound which was bought by my father in 1955, but he wore it on special occasions, in no way as an everyday watch, and a Breitling chrono which is around 20 years, after 10 years it started loosing 5-7 minutes everyday, when I asked for a price of servicing I was told 800 euros, that was 10 years ago, since I wasn't wearing it anymore I didn't do it, so basically the experience I had is that the Breitling stardted going wrong after 10 years.

Maybe it also depends on what kind of movement you have, thanks in advance for your help on this