Reference Library

The structured record behind the reference catalog: calibers, component compatibility, serial and marking knowledge, terminology, sources, and the questions still open.

Movement libraryCalibers as records rather than as strings on a specification sheet — with their production life, revisions, relationships and the marks that identify a genuine example.213 calibers
Component libraryBracelets, end links, clasps, bezels, dials, crowns and crystals as parts with their own identity — and the records of which reference legitimately carried which, and when.121 parts
Serial numberingHow a manufacturer numbered its watches, and — just as importantly — whether the number can be decoded at all.58 schemes
Hallmarks & markingsFineness marks, assay marks, case-maker punches and the stampings found on movements, dials and bracelets.45 marks
TerminologyWatchmaking vocabulary written for authentication: what the term means, and what its presence or absence tells an examiner.166 terms
SourcesEvery body of evidence the catalog cites, with its authority tier. A citation can never claim more confidence than its source supports.164 sources
Open researchWhat this catalog does not yet know, tracked as data. A knowledge base that shows only its answers reads as complete; one that shows its questions can be trusted.154 open questions