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

Unitas 447

Fabrique d'Ebauches Unitas SAarchive filing⟨1945 or earlier⟩ range onlydesign:unitas-447compare specs
⟨1945 or earlier⟩ range only — no source gives an introduction yearread from sources · staged
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“3-4) ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“3-4) ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1945
a dated example movement, ca. 1940 (+5 yr, the source says “circa”)“3-4) ca. 1940: UT 231, Arsa, 447, Swiss, 15 Rubis”
not after 1950
a dated example movement, ca. 1945 (+5 yr, the source says “circa”)“ca. 1945: UT 233; Super-Shock-Resist”

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
Unitas 447
movementproducer: Fabrique d'Ebauches Unitas 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 Unitas 447 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:unitas-447/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
15—staged
Seconds display
disp.seconds_display
small—staged
Casing diameter
geom.casing_diameter_mm
41.65 mm—staged
Movement diameter
geom.diameter_mm
41 mm—staged
Movement height
geom.height_mm
5.3 mm—staged
Frequency
osc.frequency_vph
18000 vph—staged
Power reserve (typical)
power.reserve_typical_h
41 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.

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

Unitas family/generations block
authority: ranfft71 members

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/20181108082907/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_447
    archivetier 2retrieved 2018-11-0810 facts on this page
  2. 2
    Internet Archive
    https://web.archive.org/web/20230902003221/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Unitas_231
    archivetier 2retrieved 2023-09-022 facts on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20230902003301/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Unitas_255
    archivetier 2retrieved 2023-09-022 facts on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20230902003310/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Unitas_257
    archivetier 2retrieved 2023-09-021 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20230902003318/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Unitas_259
    archivetier 2retrieved 2023-09-022 facts on this page
  6. 6
    Internet Archive
    https://web.archive.org/web/20181108083111/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_477
    archivetier 2retrieved 2018-11-082 facts on this page
  7. 7
    Internet Archive
    https://web.archive.org/web/20181108083253/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_508
    archivetier 2retrieved 2018-11-081 fact on this page
  8. 8
    Internet Archive
    https://web.archive.org/web/20181108081357/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_249
    archivetier 2retrieved 2018-11-081 fact on this page
  9. 9
    Internet Archive
    https://web.archive.org/web/20181108081300/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_239
    archivetier 2retrieved 2018-11-081 fact on this page
  10. 10
    Internet Archive
    https://web.archive.org/web/20181108082918/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_449
    archivetier 2retrieved 2018-11-081 fact on this page
  11. 11
    Internet Archive
    https://web.archive.org/web/20181108081610/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_265
    archivetier 2retrieved 2018-11-081 fact on this page
  12. 12
    Internet Archive
    https://web.archive.org/web/20181108083037/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_471
    archivetier 2retrieved 2018-11-081 fact on this page
  13. 13
    Internet Archive
    https://web.archive.org/web/20181108081238/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_235
    archivetier 2retrieved 2018-11-081 fact on this page
  14. 14
    Internet Archive
    https://web.archive.org/web/20181108081738/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_277
    archivetier 2retrieved 2018-11-081 fact on this page
  15. 15
    Internet Archive
    https://web.archive.org/web/20181108081704/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_271
    archivetier 2retrieved 2018-11-081 fact on this page
  16. 16
    Internet Archive
    https://web.archive.org/web/20181108081323/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Unitas_243
    archivetier 2retrieved 2018-11-081 fact on this page