CALIBER/browser
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.

Open the full family view →

movement

Omega 28SC

Omegaarchive filingintroduced 1944design:omega-28sccompare specs
bounding evidence — no range is drawn on the era axis
not after 1944
a dated example movement, 1944“1944: 9965072, Omega Swiss, 17 Jewels”
not after 1944
a dated example movement, 1944“1944: 9965072, Omega Swiss, 17 Jewels”
not after 1944
a dated example movement, 1944“1944: 9965072, Omega Swiss, 17 Jewels”
not after 1944
a dated example movement, 1944“1944: 9965072, Omega Swiss, 17 Jewels”
not after 1944
a dated example movement, 1944“1944: 9965072, Omega Swiss, 17 Jewels”
not after 1944
a dated example movement, 1944“1944: 9965072, Omega Swiss, 17 Jewels”
not after 1944
a dated example movement, 1944“1944: 9965072, Omega Swiss, 17 Jewels”

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
Omega 28SC
movementproducer: Omegaarchive filing
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any Omega 28SC 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:omega-28sc/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
17—staged
Seconds display
disp.seconds_display
central—staged
Movement diameter
geom.diameter_mm
28 mm—staged
Movement height
geom.height_mm
4.3 mm—staged
Frequency
osc.frequency_vph
18000 vph—staged
Discontinued
prod.discontinued_year
1949—staged
Introduced
prod.intro_year
1944—staged
Winding mode
wind.mode
manual—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.

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/20230901191832/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_28SC
    archivetier 2retrieved 2023-09-0110 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20230901192342/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_370
    archivetier 2retrieved 2023-09-011 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20230901192352/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_371
    archivetier 2retrieved 2023-09-011 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20230901192336/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_361
    archivetier 2retrieved 2023-09-011 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20171031010911/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&158&2uswk&Omega_360
    archivetier 2retrieved 2017-10-311 fact on this page
  6. 6
    Internet Archive
    https://web.archive.org/web/20230901191743/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_28
    archivetier 2retrieved 2023-09-011 fact on this page
  7. 7
    Internet Archive
    https://web.archive.org/web/20230901192402/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_372
    archivetier 2retrieved 2023-09-011 fact on this page