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

Family line

Dugena 774 (ETA 2510)

Heritage4 calibers3 lineage edges0 related edgesdesign:dugena-774compare specs · 4

This profile traverses clone_of · derived_from · ebauche_of · licensed_copy_of · module_on · revision_of · tooling_transfer_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) · 4 calibersParts cluster (Jules Borel sense) · 1 calibersManufacturer-internal (Ranfft sense) · 1 calibersBased-on star (WatchBase sense) · 4 calibers
100%overlaydrag to pan · ⌘/ctrl + scroll to zoom · hover a caliber to isolate its line
ébauche ofébauche ofébauche ofDugena 774 (ETA 2510) — open caliber pageDugena 774 (ETA 251…1959maker not sourced1 exec · grade ?ETA 2510 — open caliber pageETA 25101959ETA SA Manufacture Horlogère…1 exec · grade ?Junghans 640.03 (ETA 2510) — open caliber pageJunghans 640.03 (ETA 2510)—maker not sourced1 exec · grade ?Juvenia 765 (ETA 2510) — open caliber pageJuvenia 765 (ETA 2510)—maker not sourc…1 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
Dugena 774 (ETA 2510)ébauche of
lineage
ETA 2510staged—
Junghans 640.03 (ETA 2510)ébauche of
lineage
ETA 2510staged—
Juvenia 765 (ETA 2510)ébauche of
lineage
ETA 2510staged—

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/20191122065622/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Dugena_774
    archivetier 2retrieved 2019-11-221 fact on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20191114061542/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Junghans_640_03
    archivetier 2retrieved 2019-11-141 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20171030231213/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&131&2uswk&Juvenia_765
    archivetier 2retrieved 2017-10-301 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20181107093611/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&ETA_2512_1
    archivetier 2retrieved 2018-11-071 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20191021153655/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&ETA_2510
    archivetier 2retrieved 2019-10-211 fact on this page
  6. 6
    Internet Archive
    https://web.archive.org/web/20221019174553/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&ETA_2512
    archivetier 2retrieved 2022-10-191 fact on this page