Skip to content
The Encyclopedia of Horology

Serial-number guide

Girard-Perregaux Serial Numbers

Partially verified

What a Girard-Perregaux serial number can establish, what it cannot, and how to record a date estimate another researcher could check.

Diagram

maker or gradeserialcase hallmarksimport and assay marks
Schematic: where markings are found. An outline schematic drawn to show the arrangement of the parts discussed here. It is not a dimensioned working drawing and does not depict a particular maker's calibre.

Method

Reading the number, step by step

  1. 1. Find the movement number

    Swiss case and movement numbers are usually separate sequences by different makers; only the movement serial, where one exists, is relevant to movement dating.

  2. 2. Understand what it encodes

    Serials are broadly chronological within eras, but numbering restarts and era boundaries mean a bare number without context is not safely dateable from public sources.

  3. 3. Judge how precise the date can be

    Moderate via factory enquiry for many periods; public self-dating is approximate.

  4. 4. Check the records behind the tables

    The company maintains archives and a heritage department; some serial information is available by direct enquiry, but no comprehensive public table exists.

Quick facts

Manufacturer
Girard-Perregaux
Dating confidence
Estimate only — see notes
Editorial status
Partially verified

Sources & references

  1. Girard-Perregaux heritage archive (direct enquiry)
  2. Published brand histories

Where sources disagree, the disagreement is stated rather than resolved silently.

Limits

What the number does not prove

Questions

Frequently asked

Where is the serial number on a Girard-Perregaux watch?
Swiss case and movement numbers are usually separate sequences by different makers; only the movement serial, where one exists, is relevant to movement dating.
What do Girard-Perregaux serial numbers mean?
Serials are broadly chronological within eras, but numbering restarts and era boundaries mean a bare number without context is not safely dateable from public sources.
How accurate is dating a Girard-Perregaux watch by serial number?
Moderate via factory enquiry for many periods; public self-dating is approximate.
Where are Girard-Perregaux production records held?
The company maintains archives and a heritage department; some serial information is available by direct enquiry, but no comprehensive public table exists.

Continue

Other serial-number guides