CALIBER/browser
CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.
Family treeETA 2671 — Heritage family: 15 calibers, 14 sourced lineage links.Drag to explore.
100%drag 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 ofébauche ofébauche ofDugena 3348 (ETA 2671) — open caliber pageDugena 3348 (ETA 2671)—maker not sourc…1 exec · grade ?ETA 2671 — the caliber this page is aboutETA 26711971ETA SA Manufacture Horlogère…4 exec · grade ?Eterna 12671 (ETA 2671) — open caliber pageEterna 12671 (ETA 267…1970maker not sourced1 exec · grade ?Eterna 12671-1 (ETA 2671) — open caliber pageEterna 12671-1 (ETA 267…1970maker not sourced1 exec · grade ?Longines 561.1 (ETA 2671) — open caliber pageLongines 561.1 (ETA 2671)—maker not sourced1 exec · grade ?Longines 561.2 (ETA 2671) — open caliber pageLongines 561.2 (ETA 2671)—maker not sourced1 exec · grade ?Mido 12671 (ETA 2671) — open caliber pageMido 12671 (ETA 2671)—maker not sourc…1 exec · grade ?Mido 757C (ETA 2671) — open caliber pageMido 757C (ETA 2671)1971maker not sourc…1 exec · grade ?Movado 485 (ETA 2671) — open caliber pageMovado 485 (ETA 267…1975maker not sourced1 exec · grade ?MST 485 (ETA 2671) — open caliber pageMST 485 (ETA 2671)1971maker not sourc…1 exec · grade ?Tissot 2321 (ETA 2671) — open caliber pageTissot 2321 (ETA 267…1972maker not sourced1 exec · grade ?Tissot 2381 (ETA 2671) — open caliber pageTissot 2381 (ETA 267…1972maker not sourced1 exec · grade ?Tissot 3112 (ETA 2671) — open caliber pageTissot 3112 (ETA 267…1980maker not sourced1 exec · grade ?Zenith 48.5AF (ETA 2671) — open caliber pageZenith 48.5AF (ETA 267…1971maker not sourced1 exec · grade ?Zenith 48.9AF (ETA 2671) — open caliber pageZenith 48.9AF (ETA 2671)—maker not sourced1 exec · grade ?
accepteddisputed
Sense of “family”Heritage · 15Everything (debug) · 15Parts cluster (Jules Borel sense) · 1Manufacturer-internal (Ranfft sense) · 1Based-on star (WatchBase sense) · 15Open the full family view →

movement

ETA 2671

ETA SA Manufacture Horlogère SuisseETA SA Manufacture Horlogère Suissearchive filingintroduced 1971design:eta-2671compare specs · 8
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”)“1-2) ca. 1975: Swiss Made, 21 Jewels - Patented; Incabloc”
not after 1985
a dated example movement, ca. 1980 (+5 yr, the source says “circa”)“3) ca. 1980: Mido, Commander, Swiss, A/H 28800, 25 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 2671
movementproducer: ETA SA Manufacture Horlogère Suisseproducer: ETA SA Manufacture Horlogère Suissearchive filing
IIDesignations — 3 names
IssuerNameKindDisambiguated bySources
Cartier076house—
Cartier077house—
Tudor2671house—
IIIExecutions — 4 articles

No source in this corpus states which grade any ETA 2671 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.

unknown
evidence: unknownunder a designationmodified by Cartier076
exec:cartier/076
unknown
evidence: unknownunder a designationmodified by Cartier077
exec:cartier/077
unknown
evidence: unknownunder a designationmodified by Tudor2671
exec:tudor/2671
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-2671/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
25—accepted
Jewels
build.jewel_count
17Ranfft data sheet, the 17-jewel member of its 17/21/25 rangeaccepted
Jewels
build.jewel_count
21Ranfft data sheet, the 21-jewel member of its 17/21/25 rangeaccepted
Jewels
build.jewel_count
25Ranfft data sheet, the 25-jewel member of its 17/21/25 rangeaccepted
Date correction
disp.date_quickset
crown—staged
Date
disp.has_date
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
4.8 mm—accepted
Frequency
osc.frequency_vph
28800 vph—accepted
Shock protection
osc.shock_protection
incablocexample movement, 1975staged
Shock protection
osc.shock_protection
incablocexample movement, 1980staged
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 · 14

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

367
models
4
brands
369
grade unknown

grain 367 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. 1
    Internet Archive
    https://web.archive.org/web/20170409004824/http://www.eta.ch:80/en/our-products/mechanical-movements/mecaline/eta-mecaline-2671
    archivetier 2retrieved 2017-04-096 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20221119211147/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&ETA_2671
    archivetier 2retrieved 2022-11-1918 facts on this page
  3. 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. 4
    jewelry.ha.com
    https://jewelry.ha.com/itm/timepieces/cartier-santos-100-automatic-stainless-steel-ref-w20132x8-circa-2000s/a/5369-54118.s
    presstier 2retrieved 2026-08-311 fact on this page
  5. 5
    wewatches.com
    https://www.wewatches.com/en/marketplace/cartier/santos-de-cartier/cartier-santos-lady-automatic-581784
    presstier 2retrieved 2026-08-311 fact on this page
  6. 6
    Fratello
    https://www.fratellowatches.com/two-for-tuesday-new-tudor-royal-versus-rolex-datejust/
    presstier 2retrieved 2026-08-311 fact on this page
  7. 7
    Internet Archive
    https://web.archive.org/web/20191215174604/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Dugena_3348
    archivetier 2retrieved 2019-12-151 fact on this page
  8. 8
    Internet Archive
    https://web.archive.org/web/20181107105042/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Eterna_12671_1
    archivetier 2retrieved 2018-11-071 fact on this page
  9. 9
    Internet Archive
    https://web.archive.org/web/20171030202153/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&85&2uswk&Eterna_12671
    archivetier 2retrieved 2017-10-301 fact on this page
  10. 10
    Internet Archive
    https://web.archive.org/web/20171201041635/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Longines_561_1
    archivetier 2retrieved 2017-12-011 fact on this page
  11. 11
    Internet Archive
    https://web.archive.org/web/20171031000428/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&143&2uswk&Longines_561_2
    archivetier 2retrieved 2017-10-311 fact on this page
  12. 12
    Internet Archive
    https://web.archive.org/web/20230901172652/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Mido_12671
    archivetier 2retrieved 2023-09-011 fact on this page
  13. 13
    Internet Archive
    https://web.archive.org/web/20171031002607/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&148&2uswk&Mido_757C
    archivetier 2retrieved 2017-10-311 fact on this page
  14. 14
    Internet Archive
    https://web.archive.org/web/20230901181920/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Movado_485
    archivetier 2retrieved 2023-09-011 fact on this page
  15. 15
    Internet Archive
    https://web.archive.org/web/20171031005205/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&154&2uswk&MST_485
    archivetier 2retrieved 2017-10-311 fact on this page
  16. 16
    Internet Archive
    https://web.archive.org/web/20181108071847/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Tissot_2321
    archivetier 2retrieved 2018-11-081 fact on this page
  17. 17
    Internet Archive
    https://web.archive.org/web/20220528222525/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&b&2uswk&Tissot_2381
    archivetier 2retrieved 2022-05-281 fact on this page
  18. 18
    Internet Archive
    https://web.archive.org/web/20230902000231/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Tissot_3112
    archivetier 2retrieved 2023-09-021 fact on this page
  19. 19
    Internet Archive
    https://web.archive.org/web/20230902014457/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Zenith_48_5AF
    archivetier 2retrieved 2023-09-021 fact on this page
  20. 20
    Internet Archive
    https://web.archive.org/web/20230902014511/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Zenith_48_9AF
    archivetier 2retrieved 2023-09-021 fact on this page