CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.
Family treeZenith 1740 — Heritage family: 2 calibers, 1 sourced lineage link.Drag to explore.
accepteddisputed

movement

Zenith 1740

Zenitharchive filingintroduced 1967design:zenith-1740compare specs · 2
bounding evidence — no range is drawn on the era axis
not after 1969
a dated example movement, 1969“1969: Zenith, Swiss, 17 Jewels; Kif-Ultraflex”

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
Zenith 1740
movementproducer: Zenitharchive filing
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any Zenith 1740 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:zenith-1740/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
17—staged
Casing diameter
geom.casing_diameter_mm
17.5 mm—staged
Movement diameter
geom.diameter_mm
17.2 mm—staged
Movement height
geom.height_mm
2.7 mm—staged
Frequency
osc.frequency_vph
21600 vph—staged
Shock protection
osc.shock_protection
kifexample movement, 1969staged
Power reserve (typical)
power.reserve_typical_h
38 h—staged
Discontinued
prod.discontinued_year
19691730, 1740staged
Introduced
prod.intro_year
19671730, 1740staged
Production volume
prod.volume_count
150001730, 1740staged
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.

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/20181108104535/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Zenith_1740
    archivetier 2retrieved 2018-11-0813 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20230901175809/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Movado_1740
    archivetier 2retrieved 2023-09-011 fact on this page