Family treeETA 2678 — Heritage family: 6 calibers, 5 sourced lineage links.Drag to explore.

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accepteddisputed

Sense of “family”Heritage · 6Everything (debug) · 6 Parts cluster (Jules Borel sense) · 1 Manufacturer-internal (Ranfft sense) · 1 Based-on star (WatchBase sense) · 6 Open the full family view →

movement

ETA 2678

ETA SA Manufacture Horlogère Suissearchive filingETA SA Manufacture Horlogère Suisseintroduced 1971design:eta-2678compare specs · 6

bounding evidence — no range is drawn on the era axis

not after 1980

a dated example movement, ca. 1975 (+5 yr, the source says “circa”)“3) ca. 1975: Mido, Swiss, AH 28.800, 757CD, 17 Jewels; Incabloc”

not after 1995

a dated example movement, ca. 1990 (+5 yr, the source says “circa”)“4) ca. 1990: Orfina Watch Ltd, Swiss Made, 25 Jewels; Incabloc”

not after 2000

a dated example movement, 2000“1-2) 2000: Swiss Made, 21 Jewels; 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 2678

movementproducer: ETA SA Manufacture Horlogère Suissearchive filingproducer: ETA SA Manufacture Horlogère Suisse

IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any ETA 2678 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-2678/unknown

Specifications

Property	Value	Scope	Status
Jewels build.jewel_count	25	—	accepted
Jewels build.jewel_count	17	Ranfft data sheet, the 17-jewel member of its 17/21/25 range	accepted
Jewels build.jewel_count	21	Ranfft data sheet, the 21-jewel member of its 17/21/25 range	accepted
Jewels build.jewel_count	25	Ranfft data sheet, the 25-jewel member of its 17/21/25 range	accepted
Date correction disp.date_quickset	crown	—	staged
Date disp.has_date	yes	—	staged
Day disp.has_day	yes	—	staged
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	—	accepted
Movement height geom.height_mm	5.35 mm	—	accepted
Frequency osc.frequency_vph	28800 vph	—	accepted
Shock protection osc.shock_protection	incabloc	example movement, 2000	staged
Shock protection osc.shock_protection	incabloc	example movement, 1975	staged
Shock protection osc.shock_protection	incabloc	example movement, 1990	staged
Power reserve (typical) power.reserve_typical_h	39 h	—	staged
Product family prod.family_name	Mecaline	—	accepted
Introduced prod.intro_year	1971	—	staged
Production status prod.status	discontinued	—	accepted
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.

Descendants · 5

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

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.

Used by

models

brands

grade unknown

grain 34 reference — every record here sits at the same level, so the count is one kind of thing.

Every brand here is on the strength of a source that names a watch and states this movement. Brands that use this caliber and nobody has sourced yet are absent — this is what has been researched, not what exists.

Sources

1
Internet Archive
https://web.archive.org/web/20190922165413/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&ETA_2678
archivetier 2retrieved 2019-09-2221 facts on this page
2
Internet Archive
https://web.archive.org/web/20170408032603/http://www.eta.ch:80/en/our-products/mechanical-movements/mecaline/eta-mecaline-2678
archivetier 2retrieved 2017-04-086 facts on this page
3
Internet Archive
https://web.archive.org/web/20240521001327/https://shopb2b.eta.ch/en/mecaline/phased-out/mecaline.html
archivetier 2retrieved 2024-05-211 fact on this page
4
Internet Archive
https://web.archive.org/web/20181106134633/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Dugena_3358
archivetier 2retrieved 2018-11-061 fact on this page
5
Internet Archive
https://web.archive.org/web/20181107105053/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Eterna_12678
archivetier 2retrieved 2018-11-071 fact on this page
6
Internet Archive
https://web.archive.org/web/20230901172920/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Mido_757CD
archivetier 2retrieved 2023-09-011 fact on this page
7
Internet Archive
https://web.archive.org/web/20181108071858/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Tissot_2341
archivetier 2retrieved 2018-11-081 fact on this page
8
Internet Archive
https://web.archive.org/web/20181108071954/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Tissot_2391
archivetier 2retrieved 2018-11-081 fact on this page