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

Family tree · none recorded

No lineage link to any other caliber is recorded for this design under the Heritage profile. That is a gap in the research, not a claim that none exists.

movement

ETA 2523R

ETA SA Manufacture Horlogère Suissearchive filingintroduced 1965design:eta-2523rcompare specs

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 2523R
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 2523R 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-2523r/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
25—staged
Date correction
disp.date_quickset
none—staged
Date
disp.has_date
yes—staged
Seconds display
disp.seconds_display
central—staged
Casing diameter
geom.casing_diameter_mm
29.4 mm—staged
Movement diameter
geom.diameter_mm
29 mm—staged
Movement height
geom.height_mm
4.7 mm—staged
Frequency
osc.frequency_vph
18000 vph—staged
Shock protection
osc.shock_protection
incablocexample movement, 1970staged
Power reserve (typical)
power.reserve_typical_h
44 h—staged
Introduced
prod.intro_year
1965—staged
Winding mode
wind.mode
automatic—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 · 0

Where this construction came from. Read up the arrows.

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

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.

Curated family labels

ETA family/generations block
authority: ranfft55 members

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/20181107093741/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&ETA_2523R
    archivetier 2retrieved 2018-11-0713 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20191114092249/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&ETA_2722R
    archivetier 2retrieved 2019-11-141 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20191117152623/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&ETA_2724R
    archivetier 2retrieved 2019-11-171 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20201027030100/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&ETA_2520R
    archivetier 2retrieved 2020-10-271 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20211206083556/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&ETA_2522
    archivetier 2retrieved 2021-12-061 fact on this page