IWC or Superior Watch or other for 5002 Big Pilot

I think my 5002 BP is about ready for a service and it's also running a bit fast so may need some regulating. Is that included in the service?

I have the original fish crown and would prefer to keep it. Will they automatically replace it with new version or will they ask first?

Also, do you recommend IWC in TX or Superior Watch in NY? Thanks.

For repair choices, please reply via e-mail only

...since the forum is required to be strictly non-commercial.

Thanks,
Michael