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.

movement

Bulova 11ACAC

Bulovaarchive filingintroduced 1955design:bulova-11acaccompare specs

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
Bulova 11ACAC
movementproducer: Bulovaarchive filing
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any Bulova 11ACAC 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:bulova-11acac/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
17—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
5.85 mm—staged
Frequency
osc.frequency_vph
18000 vph—staged
Shock protection
osc.shock_protection
kifexample movement, 1961staged
Power reserve (typical)
power.reserve_typical_h
41 h—staged
Discontinued
prod.discontinued_year
1958—staged
Introduced
prod.intro_year
1955—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 · 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.

Curated family labels

Bulova family/generations block
authority: ranfft8 members

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/20220710041537/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&be&2uswk&Bulova_11ACAC
    archivetier 2retrieved 2022-07-1012 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20191017134909/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Bulova_10BPAC
    archivetier 2retrieved 2019-10-171 fact on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20230905235044/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Bulova_10BPAD&
    archivetier 2retrieved 2023-09-051 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20230906001356/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Bulova_11AC&
    archivetier 2retrieved 2023-09-061 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20231202051226/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Bulova_10BOAC
    archivetier 2retrieved 2023-12-021 fact on this page