CALIBER/browser
CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.
Family treeOmega 980 (Lemania 2980) — Heritage family: 2 calibers, 1 sourced lineage link.Drag to explore.
100%drag to pan · hover a caliber to isolate its line · scroll the page normallyopen the full family view →
ébauche ofLemania 2980 — open caliber pageLemania 29801969Lemania Watch C…1 exec · grade ?Omega 980 (Lemania 2980) — the caliber this page is aboutOmega 980 (Lemania 298…1969maker not sourced1 exec · grade ?
accepteddisputed
Sense of “family”Heritage · 2Everything (debug) · 2Parts cluster (Jules Borel sense) · 1Manufacturer-internal (Ranfft sense) · 1Based-on star (WatchBase sense) · 2Open the full family view →

movement

Omega 980 (Lemania 2980)

maker not sourcedintroduced 1969design:omega-980compare specs · 2
bounding evidence — no range is drawn on the era axis
not after 1970
a dated example movement, 1970“1970: 31338786, Omega Swiss; Incabloc”
not after 1970
a dated example movement, 1970“1970: 31338786, Omega Swiss; 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
Omega 980 (Lemania 2980)
movement
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any Omega 980 (Lemania 2980) 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-980/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
19—staged
Date correction
disp.date_quickset
corrector_pusher—staged
Date
disp.has_date
yes—staged
Seconds display
disp.seconds_display
central—staged
Movement diameter
geom.diameter_mm
30.8 mm—staged
Movement height
geom.height_mm
7.8 mm—staged
Frequency
osc.frequency_vph
21600 vph—staged
Shock protection
osc.shock_protection
incablocexample movement, 1970staged
Discontinued
prod.discontinued_year
1974—staged
Introduced
prod.intro_year
1969—staged
Production volume
prod.volume_count
35000—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 · 1

Where this construction came from. Read up the arrows.

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/20171031011733/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&160&2uswk&Omega_980
    archivetier 2retrieved 2017-10-3114 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20171030234626/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&139&2uswk&Lemania_2980
    archivetier 2retrieved 2017-10-301 fact on this page