Maybe I was too specific with my original post, limiting my question to the val. 7734 movement.

In general how often do you have your vintage watches serviced? I am leaning towards 5 years, but I am curious if any of you do it more often or less. Also curious what you suggest and have done when a maintenance service is performed (i.e. lube, replace gaskets, full disassemble / reassemble, etc...)

Sorry if this is a silly or newbie question, I am just looking to learn and I am not very familiar with service requirements for vintage movements.

Thank you,
Chris