Provenance
The Maison Swiss 12-point authentication protocol
Trust is not a claim; it is a procedure. Every watch offered by Maison Swiss — and every watch we acquire — passes the same twelve examinations before money changes hands. We decline more watches than we accept.
Provenance interview
Where the watch has been: ownership history, service records, and the story the paperwork should corroborate.
Reference and serial cross-check
Case, movement and papers checked against factory records and production-year databases for internal consistency.
Case geometry
Factory bevels, lug profiles and case lines examined for over-polishing, replacement parts or laser work.
Dial examination
Print quality, lume application and patina inspected under magnification against known-correct examples of the reference.
Hands and date furniture
Correct handset for the reference and period; date wheel font and alignment verified.
Movement verification
The calibre opened and confirmed — correct movement for the reference, matching serials where the brand applies them.
Movement condition
Finishing, service marks and wear assessed by a watchmaker; timing measured across positions.
Bracelet and clasp
End links, clasp codes and stretch checked; correct bracelet for reference and year.
Crystal and seals
Crystal, cyclops and gaskets inspected; water-resistance tested where appropriate to the piece.
Papers under scrutiny
Guarantee cards and certificates examined for print, format and — where applicable — NFC verification.
Market history check
Serial checked against stolen-watch registers and industry databases before any offer is made.
The final sign-off
A second set of eyes. No watch enters the collection on one opinion.
Every timepiece is covered by the 24-month Maison Swiss guarantee, alongside a lifetime guarantee of authenticity.