CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.

Family tree · none recorded

No lineage link to any other caliber is recorded for this design under the Heritage profile. That is a gap in the research, not a claim that none exists.

movement

Girard-Perregaux 42.2

Girard-Perregauxarchive filingyear not sourceddesign:girard-perregaux-42-2compare specs

Identity

A caliber is three separate things and this reference keeps them apart: the construction, the names it is sold under, and the article a brand actually bought. A watch model points at an execution — never at a bare construction — which is why “same caliber” is almost never a complete answer.

IDesign — the construction
Girard-Perregaux 42.2
movementproducer: Girard-Perregauxarchive filing
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any Girard-Perregaux 42.2 was bought at. That unknown is stored as a real row rather than left blank, so it can be counted, filtered and excluded from any comparison that would otherwise assume parity.

unknownsynthetic
evidence: unknown

no source states which grade this article was bought at — this row exists so 'unknown' stays countable instead of becoming an assumption

exec:girard-perregaux-42-2/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
17Ranfft data sheet, the 17-jewel member of its 17/39 rangestaged
Jewels
build.jewel_count
39Ranfft data sheet, the 39-jewel member of its 17/39 rangestaged
Date correction
disp.date_quickset
none—staged
Date
disp.has_date
yes—staged
Seconds display
disp.seconds_display
central—staged
Casing diameter
geom.casing_diameter_mm
26 mm—staged
Movement diameter
geom.diameter_mm
25.6 mm—staged
Movement height
geom.height_mm
5.3 mm—staged
Frequency
osc.frequency_vph
21600 vph—staged
Shock protection
osc.shock_protection
incablocexample movement, 1965staged
Power reserve (typical)
power.reserve_typical_h
40 h—staged
Hacking seconds
wind.has_hacking_seconds
yes—staged
Winding mode
wind.mode
automatic—staged

Where a property carries more than one value, the values have different scopes — an official spec sheet and observed hardware, say. Different scopes are not a disagreement, so both are accepted and both are shown with the scope they apply to.

Lineage

The same relationships as the tree at the top of this page, with their sources. An absence in a column means no source stated one.

Ancestors · 0

Where this construction came from. Read up the arrows.

None recorded. An absence here means no source stated one, not that none exists.

Descendants · 0

What came from it — revisions, variants, clones, licensed copies.

None recorded. An absence here means no source stated one, not that none exists.

Related · 0

Stored in a different table from descent. A successor is not a child.

None recorded. An absence here means no source stated one, not that none exists.

Curated family labels

Girard-Perregaux family/generations block
authority: ranfft35 members

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/20181107153034/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Girard-Perregaux_42_2
    archivetier 2retrieved 2018-11-0714 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20191121052024/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Girard-Perregaux_30_7
    archivetier 2retrieved 2019-11-211 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20191121133745/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Girard-Perregaux_31_9
    archivetier 2retrieved 2019-11-211 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20201204112054/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Girard-Perregaux_32_5
    archivetier 2retrieved 2020-12-041 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20231208232950/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Girard-Perregaux_41_0
    archivetier 2retrieved 2023-12-081 fact on this page