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

Family line

Bulova 17AH (ETA 951, 953)

Based-on star (WatchBase sense)5 calibers4 lineage edges0 related edgesdesign:bulova-17ahcompare 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%drag to pan · ⌘/ctrl + scroll to zoom · hover a caliber to isolate its line
ébauche ofébauche ofébauche ofébauche ofBulova 17AH (ETA 951, 953) — open caliber pageBulova 17AH (ETA 951, 95…1935maker not sourced1 exec · grade ?Bulova 17AHS (ETA 951, 953) — open caliber pageBulova 17AHS (ETA 951, 953)—maker not sourced1 exec · grade ?Bulova 17AL (ETA 951, 953) — open caliber pageBulova 17AL (ETA 951, 953)—maker not sourced1 exec · grade ?Bulova 17ALS (ETA 951, 953) — open caliber pageBulova 17ALS (ETA 951, 953)—maker not sourced1 exec · grade ?ETA 951 — open caliber pageETA 951—ETA SA Manufacture Horlogère…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
Bulova 17AH (ETA 951, 953)ébauche of
lineage
ETA 951staged—
Bulova 17AHS (ETA 951, 953)ébauche of
lineage
ETA 951staged—
Bulova 17AL (ETA 951, 953)ébauche of
lineage
ETA 951staged—
Bulova 17ALS (ETA 951, 953)ébauche of
lineage
ETA 951staged—

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/20230906015600/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Bulova_17AH&
    archivetier 2retrieved 2023-09-061 fact on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20181106114613/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Bulova_17AHS
    archivetier 2retrieved 2018-11-061 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20181106114619/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Bulova_17AL
    archivetier 2retrieved 2018-11-061 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20190915201544/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Bulova_17ALS
    archivetier 2retrieved 2019-09-151 fact on this page