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

Family line

Blancpain 21 (Frederic Piguet 21)

Everything (debug)7 calibers6 lineage edges0 related edgesdesign:blancpain-21compare specs · 7

This profile traverses clone_of · derived_from · design_imitation_of · ebauche_of · incorporates_module · 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”Heritage · 7 calibersParts cluster (Jules Borel sense) · 1 calibersManufacturer-internal (Ranfft sense) · 1 calibersBased-on star (WatchBase sense) · 7 calibers
100%drag to pan · ⌘/ctrl + scroll to zoom · hover a caliber to isolate its line
ébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofBlancpain 21 (Frederic Piguet 21) — open caliber pageBlancpain 21 (Frederic Pigue…1925maker not sourced1 exec · grade ?Cartier 21 (Frederic Piguet 21) — open caliber pageCartier 21 (Frederic Piguet 21)—maker not sourced1 exec · grade ?Certina 20-10 (Frederic Piguet 21) — open caliber pageCertina 20-10 (Frederic Piguet …—maker not sourced1 exec · grade ?Frederic Piguet 21 — open caliber pageFrederic Piguet 211925Frédéric Piguet SA1 exec · grade ?Longines 310 (Frederic Piguet 21) — open caliber pageLongines 310 (Frederic Piguet 2…—maker not sourced1 exec · grade ?Omega 700 (Frederic Piguet 21) — open caliber pageOmega 700 (Frederic Piguet 2…1964maker not sourced1 exec · grade ?Zenith 53.5 (Frederic Piguet 21) — open caliber pageZenith 53.5 (Frederic Piguet…1925maker 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
Blancpain 21 (Frederic Piguet 21)ébauche of
lineage
Frederic Piguet 21staged—
Cartier 21 (Frederic Piguet 21)ébauche of
lineage
Frederic Piguet 21staged—
Certina 20-10 (Frederic Piguet 21)ébauche of
lineage
Frederic Piguet 21staged—
Longines 310 (Frederic Piguet 21)ébauche of
lineage
Frederic Piguet 21staged—
Omega 700 (Frederic Piguet 21)ébauche of
lineage
Frederic Piguet 21staged—
Zenith 53.5 (Frederic Piguet 21)ébauche of
lineage
Frederic Piguet 21staged—

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/20200808233038/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Blancpain_21
    archivetier 2retrieved 2020-08-081 fact on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20230906060831/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Cartier_21&
    archivetier 2retrieved 2023-09-061 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20181106121238/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Certina_20_10
    archivetier 2retrieved 2018-11-061 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20171031000001/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&142&2uswk&Longines_310
    archivetier 2retrieved 2017-10-311 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20171031011326/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&159&2uswk&Omega_700
    archivetier 2retrieved 2017-10-311 fact on this page
  6. 6
    Internet Archive
    https://web.archive.org/web/20230902014748/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Zenith_53_5
    archivetier 2retrieved 2023-09-021 fact on this page