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

Family line

AS 1931

Based-on star (WatchBase sense)5 calibers4 lineage edges0 related edgesdesign:as-1931compare specs · 5

This profile traverses clone_of · derived_from · ebauche_of · revision_of · variant_of and keeps disputed edges. Every edge in this view carries at least one reference.

Same caliber, other senses of “family”Everything (debug) · 5 calibersHeritage · 5 calibersParts cluster (Jules Borel sense) · 1 calibersManufacturer-internal (Ranfft sense) · 1 calibers
100%overlaydrag to pan · ⌘/ctrl + scroll to zoom · hover a caliber to isolate its line
ébauche ofébauche ofébauche ofébauche ofAS 1931 — open caliber pageAS 19311970maker not sourc…1 exec · grade ?Bulova 11AURCD (AS 1931) — open caliber pageBulova 11AURCD (AS 193…1970maker not sourced1 exec · grade ?Dugena 3027 (AS 1931) — open caliber pageDugena 3027 (AS 193…1970maker not sourced1 exec · grade ?Tissot 2120 (AS 1931) — open caliber pageTissot 2120 (AS 193…1970maker not sourced1 exec · grade ?Tissot 2442 (AS 1931) — open caliber pageTissot 2442 (AS 193…1970maker not sourced1 exec · grade ?
Edge types in this family
accepteddisputedcontested region

Generations run left to right, ancestors first, and the axis along the top is ordinal rather than linear: each band is one generation, labelled with the range of sourced introduction years it contains. A band reads “—” when no caliber in it has a year anyone published — the gap is the finding, not a rendering failure. Dotted arcs above and below the drawing are related edges — successor, drop-in, no-derivation — which are stored in a different table from lineage and can never form part of an ancestry path.

Every edge in this view

CaliberRelationshipToStatusDetailSources
Bulova 11AURCD (AS 1931)ébauche of
lineage
AS 1931staged—
Dugena 3027 (AS 1931)ébauche of
lineage
AS 1931staged—
Tissot 2120 (AS 1931)ébauche of
lineage
AS 1931staged—
Tissot 2442 (AS 1931)ébauche of
lineage
AS 1931staged—

Curated overlays

A curated family label is an attributed opinion about grouping, not a node in the graph. No edge can point at one, and membership never affects ancestry.

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/20230906011639/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Bulova_11AURCD&
    archivetier 2retrieved 2023-09-061 fact on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20181106134241/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Dugena_3027
    archivetier 2retrieved 2018-11-061 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20181108071419/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Tissot_2120
    archivetier 2retrieved 2018-11-081 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20181108072135/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Tissot_2442
    archivetier 2retrieved 2018-11-081 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20201028045843/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&AS_1568
    archivetier 2retrieved 2020-10-281 fact on this page
  6. 6
    Internet Archive
    https://web.archive.org/web/20220118063123/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&AS_1931&
    archivetier 2retrieved 2022-01-181 fact on this page
  7. 7
    Internet Archive
    https://web.archive.org/web/20220905142019/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a&2uswk&AS_1475&
    archivetier 2retrieved 2022-09-051 fact on this page
  8. 8
    Internet Archive
    https://web.archive.org/web/20230604074855/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&AS_1930
    archivetier 2retrieved 2023-06-041 fact on this page