CALIBER/browser
CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.
Family treeVenus 65 — Heritage family: 3 calibers, 2 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 ofAlpina 543 (Venus 65 old) — open caliber pageAlpina 543 (Venus 65 old)—maker not sourced1 exec · grade ?Alpina 561 (Venus 65 old) — open caliber pageAlpina 561 (Venus 65 old)—maker not sourced1 exec · grade ?Venus 65 — the caliber this page is aboutVenus 65—Fabrique d'Ebauches Venus SA1 exec · grade ?
accepteddisputed
Sense of “family”Heritage · 3Everything (debug) · 3Parts cluster (Jules Borel sense) · 1Manufacturer-internal (Ranfft sense) · 1Based-on star (WatchBase sense) · 3Open the full family view →

movement

Venus 65

Fabrique d'Ebauches Venus SAarchive filingyear not sourceddesign:venus-65compare specs · 3

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
Venus 65
movementproducer: Fabrique d'Ebauches Venus SAarchive filing
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any Venus 65 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:venus-65/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
10—staged
Movement diameter
geom.diameter_mm
19.4 mm—staged
Movement height
geom.height_mm
3.4 mm—staged
Frequency
osc.frequency_vph
18000 vph—staged
Power reserve (typical)
power.reserve_typical_h
34 h—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.

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/20230902011935/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Venus_65
    archivetier 2retrieved 2023-09-027 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20181106093355/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Alpina_543
    archivetier 2retrieved 2018-11-061 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20230904005159/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Alpina_561&
    archivetier 2retrieved 2023-09-041 fact on this page