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-2789-1/unknown
accepteddisputed
movement
ETA 2789-1
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”)“ca. 1975: Swiss Made, 25 Jewels; Ruby-Shock”
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 2789-1
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 2789-1 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.
Specifications
| Property | Value | Scope | Status | Sources |
|---|---|---|---|---|
Jewels build.jewel_count | 25 | — | staged | |
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 | 26 mm | — | staged | |
Movement diameter geom.diameter_mm | 25.6 mm | — | staged | |
Movement height geom.height_mm | 5.9 mm | — | staged | |
Frequency osc.frequency_vph | 21600 vph | — | staged | |
Shock protection osc.shock_protection | other | example movement, 1975 | staged | |
Power reserve (typical) power.reserve_typical_h | 47 h | — | staged | |
Discontinued prod.discontinued_year | 1980 | — | staged | |
Introduced prod.intro_year | 1976 | — | 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 · 1
What came from it — revisions, variants, clones, licensed copies.
- Dugena 3338 (ETA 2789, ETA 2789-1)ébauche of
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
- 1Internet Archivehttps://web.archive.org/web/20211201054251/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&ETA_2789_1archivetier 2retrieved 2021-12-0116 facts on this page
- 2Internet Archivehttps://web.archive.org/web/20190822090639/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Dugena_3338archivetier 2retrieved 2019-08-222 facts on this page
- 3Internet Archivehttps://web.archive.org/web/20191023233058/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Durowe_589_621archivetier 2retrieved 2019-10-231 fact on this page
- 4Internet Archivehttps://web.archive.org/web/20031113231925/http://www.ranfft.de:80/cgi-bin/bidfun-db.cgi?00&ranfft&0&uswk&INT_589_621archivetier 2retrieved 2003-11-131 fact on this page