Family line

Longines 37.9

Manufacturer-internal (Ranfft sense)1 calibers0 lineage edges0 related edgesdesign:longines-37-9

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

Same caliber, other senses of “family”Everything (debug) · 1 calibers Heritage · 1 calibers Parts cluster (Jules Borel sense) · 1 calibers Based-on star (WatchBase sense) · 1 calibers

100%overlaydrag to pan · ⌘/ctrl + scroll to zoom · hover a caliber to isolate its line

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

Caliber	Relationship	To	Status	Detail	Sources

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.

Longines family/generations block

authority: ranfft3 members

Sources

1
Internet Archive
https://web.archive.org/web/20171031000342/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&143&2uswk&Longines_37_9
archivetier 2retrieved 2017-10-311 fact on this page
2
Internet Archive
https://web.archive.org/web/20171031000344/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&143&2uswk&Longines_37_93
archivetier 2retrieved 2017-10-311 fact on this page
3
Internet Archive
https://web.archive.org/web/20220219162856/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&1&2uswk&Longines_17_69NZ
archivetier 2retrieved 2022-02-191 fact on this page