CALIBER/browser
CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.
Family treeETA 2365 — Heritage family: 7 calibers, 6 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 ofDugena 1013 (ETA 2365) — open caliber pageDugena 1013 (ETA 236…1959maker not sourced1 exec · grade ?Dugena 3306 (ETA 2365) — open caliber pageDugena 3306 (ETA 236…1959maker not sourced1 exec · grade ?ETA 2365 — the caliber this page is aboutETA 23651959ETA SA Manufacture Horlogère…1 exec · grade ?Hamilton 33 (ETA 2365) — open caliber pageHamilton 33 (ETA 236…1959maker not sourced1 exec · grade ?Marvin 744 (ETA 2365) — open caliber pageMarvin 744 (ETA 236…1959maker not sourced1 exec · grade ?MST 439 (ETA 2365) — open caliber pageMST 439 (ETA 2365)—maker not sourc…1 exec · grade ?Tissot 717 (ETA 2365) — open caliber pageTissot 717 (ETA 236…1959maker not sourced1 exec · grade ?
accepteddisputed
Sense of “family”Heritage · 7Everything (debug) · 7Parts cluster (Jules Borel sense) · 1Manufacturer-internal (Ranfft sense) · 1Based-on star (WatchBase sense) · 7Open the full family view →

movement

ETA 2365

ETA SA Manufacture Horlogère Suissearchive filingintroduced 1959design:eta-2365compare specs · 7
bounding evidence — no range is drawn on the era axis
not after 1964
a dated example movement, 1964“4) 1964: 5917125, Chs. Tissot & Fils, Swiss, 21 Jewels - Patented; Incabloc”
not after 1965
a dated example movement, ca. 1960 (+5 yr, the source says “circa”)“1-3) ca. 1960: Marvin, 744, Swiss Made, 3 Adjs, 25 Jewels - Patented; Incabloc”

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
ETA 2365
movementproducer: ETA SA Manufacture Horlogère Suissearchive filing
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any ETA 2365 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:eta-2365/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
21Ranfft data sheet, the 21-jewel member of its 21/23/25 rangestaged
Jewels
build.jewel_count
23Ranfft data sheet, the 23-jewel member of its 21/23/25 rangestaged
Jewels
build.jewel_count
25Ranfft data sheet, the 25-jewel member of its 21/23/25 rangestaged
Seconds display
disp.seconds_display
central—staged
Casing diameter
geom.casing_diameter_mm
17.5 mm—staged
Movement diameter
geom.diameter_mm
17.2 mm—staged
Movement height
geom.height_mm
5.25 mm—staged
Frequency
osc.frequency_vph
18000 vph—staged
Shock protection
osc.shock_protection
incablocexample movement, 1960staged
Shock protection
osc.shock_protection
incablocexample movement, 1964staged
Power reserve (typical)
power.reserve_typical_h
38 h—staged
Discontinued
prod.discontinued_year
1967—staged
Introduced
prod.intro_year
1959—staged
Winding mode
wind.mode
automatic—staged

Where a property carries more than one value, the values have different scopes — an official spec sheet and observed hardware, say. Different scopes are not a disagreement, so both are accepted and both are shown with the scope they apply to.

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 · 0

Where this construction came from. Read up the arrows.

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/20220814041049/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&ETA_2365
    archivetier 2retrieved 2022-08-1417 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20181106131935/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Dugena_1013
    archivetier 2retrieved 2018-11-061 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20191122075313/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Dugena_3306
    archivetier 2retrieved 2019-11-221 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20191117132256/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Hamilton_33
    archivetier 2retrieved 2019-11-171 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20230901170825/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Marvin_744
    archivetier 2retrieved 2023-09-011 fact on this page
  6. 6
    Internet Archive
    https://web.archive.org/web/20230901184304/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&MST_439
    archivetier 2retrieved 2023-09-011 fact on this page
  7. 7
    Internet Archive
    https://web.archive.org/web/20181108074122/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Tissot_717
    archivetier 2retrieved 2018-11-081 fact on this page