Not as simple as you guys think.
PP Geneva will charge a min CHF130 + VAT, even just to
REFUSE a service estimate of any vintage piece or Grand Complication models, by just casting an eye on the timepiece you send to em, without doing any service or issueing any certificate.
Extract of an Archives cost another CHF100 + VAT, without estimate, service or authentify the piece at all.
If the your precious is serviceable, then you will be part with it for at least a good SIX months for a plain Calatrava, & provided its a straight forward lube & QC, which will set you back for at least CHF700-800 + VAT. Complication model is anything beyond CHF1,050 + VAT.
We personally handed in our PC 5970P & Tourbillon MR 3939H for servicing, waited over ONE year before we personally collected em from Geneva, & costing @ >CHF10k + VAT. Of course, its came back like brand new, given some LE PP freebies & with the pleasure of meeting Thierry in person.