CALIBER/browser
CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.
Family treeHamilton 23 (ETA 2412) — Heritage family: 12 calibers, 12 sourced lineage links.Drag to explore.
100%overlaydrag to pan · hover a caliber to isolate its line · scroll the page normallyopen the full family view →
ébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofDugena 1201 (ETA 2412) — open caliber pageDugena 1201 (ETA 2412)—maker not sourc…1 exec · grade ?Dugena 1207 (Helvetia 132, ETA 2412) — open caliber pageDugena 1207 (Helvetia 132, ETA …—maker not sourced1 exec · grade ?ETA 2412 — open caliber pageETA 24121955ETA SA Manufacture Horlogère…1 exec · grade ?Favre-Leuba 616 (ETA 2412) — open caliber pageFavre-Leuba 616 (ETA 2412)—maker not sourced1 exec · grade ?Hamilton 23 (ETA 2412) — the caliber this page is aboutHamilton 23 (ETA 2412)—maker not sourc…1 exec · grade ?Hamilton 231 (ETA 2412) — open caliber pageHamilton 231 (ETA 2412)—maker not sourc…1 exec · grade ?Hamilton 232 (ETA 2412) — open caliber pageHamilton 232 (ETA 2412)—maker not sourc…1 exec · grade ?Helvetia 132 (ETA 2412) — open caliber pageHelvetia 132 (ETA 2412)—maker not sourc…1 exec · grade ?Junghans 640.01 (ETA 2412) — open caliber pageJunghans 640.01 (ETA 2412)—maker not sourced1 exec · grade ?Tudor 2411 (ETA 2412) — open caliber pageTudor 2411 (ETA 2412)—maker not sourc…1 exec · grade ?Tudor 2424 (ETA 2412) — open caliber pageTudor 2424 (ETA 2412)—maker not sourc…1 exec · grade ?Zodiac 19 (ETA 2412) — open caliber pageZodiac 19 (ETA 2412)—maker not sourc…1 exec · grade ?
accepteddisputed
Sense of “family”Heritage · 12Everything (debug) · 12Parts cluster (Jules Borel sense) · 1Manufacturer-internal (Ranfft sense) · 1Based-on star (WatchBase sense) · 12Open the full family view →

movement

Hamilton 23 (ETA 2412)

maker not sourcedyear not sourceddesign:hamilton-23compare specs · 2
bounding evidence — no range is drawn on the era axis
not after 1970
a dated example movement, ca. 1965 (+5 yr, the source says “circa”)“ca. 1965: Hamilton-Logo, Swiss, 17 Jewels - Patented; Kif-Flector”
not after 1970
a dated example movement, ca. 1965 (+5 yr, the source says “circa”)“ca. 1965: Hamilton-Logo, Swiss, 17 Jewels - Patented; Kif-Flector”
not after 1970
a dated example movement, ca. 1965 (+5 yr, the source says “circa”)“ca. 1965: Hamilton-Logo, Swiss, 17 Jewels - Patented; Kif-Flector”

Identity

A caliber is three separate things and this reference keeps them apart: the construction, the names it is sold under, and the article a brand actually bought. A watch model points at an execution — never at a bare construction — which is why “same caliber” is almost never a complete answer.

IDesign — the construction
Hamilton 23 (ETA 2412)
movement
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any Hamilton 23 (ETA 2412) was bought at. That unknown is stored as a real row rather than left blank, so it can be counted, filtered and excluded from any comparison that would otherwise assume parity.

unknownsynthetic
evidence: unknown

no source states which grade this article was bought at — this row exists so 'unknown' stays countable instead of becoming an assumption

exec:hamilton-23/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
17—staged
Casing diameter
geom.casing_diameter_mm
15.55 mm—staged
Movement diameter
geom.diameter_mm
15.3 mm—staged
Movement height
geom.height_mm
3.4 mm—staged
Frequency
osc.frequency_vph
21600 vph—staged
Shock protection
osc.shock_protection
kifexample movement, 1965staged
Power reserve (typical)
power.reserve_typical_h
40 h—staged
Winding mode
wind.mode
manual—staged

Lineage

The same relationships as the tree at the top of this page, with their sources. An absence in a column means no source stated one.

Ancestors · 1

Where this construction came from. Read up the arrows.

Descendants · 0

What came from it — revisions, variants, clones, licensed copies.

None recorded. An absence here means no source stated one, not that none exists.

Related · 0

Stored in a different table from descent. A successor is not a child.

None recorded. An absence here means no source stated one, not that none exists.

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/20191120033511/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Hamilton_23
    archivetier 2retrieved 2019-11-2010 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20181107162420/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Hamilton_232
    archivetier 2retrieved 2018-11-072 facts on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20211020163835/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Hamilton_231&
    archivetier 2retrieved 2021-10-202 facts on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20230907000540/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Dugena_1201&
    archivetier 2retrieved 2023-09-071 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20230907000756/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Dugena_1207&
    archivetier 2retrieved 2023-09-072 facts on this page
  6. 6
    Internet Archive
    https://web.archive.org/web/20191021133743/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Favre-Leuba_616
    archivetier 2retrieved 2019-10-211 fact on this page
  7. 7
    Internet Archive
    https://web.archive.org/web/20191119132800/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Helvetia_132
    archivetier 2retrieved 2019-11-191 fact on this page
  8. 8
    Internet Archive
    https://web.archive.org/web/20230901141226/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Junghans_640_01
    archivetier 2retrieved 2023-09-011 fact on this page
  9. 9
    Internet Archive
    https://web.archive.org/web/20230902002101/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Tudor_2411
    archivetier 2retrieved 2023-09-021 fact on this page
  10. 10
    Internet Archive
    https://web.archive.org/web/20230902002210/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Tudor_2424
    archivetier 2retrieved 2023-09-021 fact on this page
  11. 11
    Internet Archive
    https://web.archive.org/web/20210416175113/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&220&2uswk&Zodiac_19&
    archivetier 2retrieved 2021-04-161 fact on this page