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

Longines 505 (Record 1955-2)

maker not sourcedyear not sourceddesign:longines-505compare specs · 2
bounding evidence — no range is drawn on the era axis
not after 1970
a dated example movement, 1970“1970: 50360159, Longines, 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
Longines 505 (Record 1955-2)
movement
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any Longines 505 (Record 1955-2) 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:longines-505/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
17—accepted
Date correction
disp.date_quickset
crown—staged
Date
disp.has_date
yes—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—accepted
Movement height
geom.height_mm
5.3 mm—accepted
Swiss movement
origin.swiss_movement
yes—accepted
Frequency
osc.frequency_vph
19800 vph—accepted
Shock protection
osc.shock_protection
kifexample movement, 1970staged
Power reserve (typical)
power.reserve_typical_h
40 h—accepted
Power reserve (typical)
power.reserve_typical_h
44 h—accepted
Hacking seconds
wind.has_hacking_seconds
no—accepted
Winding mode
wind.mode
automatic—accepted

Where a property carries more than one value, the values have different scopes — an official spec sheet and observed hardware, say. Different scopes are not a disagreement, so both are accepted and both are shown with the scope they apply to.

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.

Curated family labels

Longines family/generations block
authority: ranfft6 members

Sources

  1. 1
    Caliber Corner
    https://calibercorner.com/longines-caliber-505
    curated dbtier 2retrieved 2026-09-088 facts on this pagecited, never crawled
  2. 2
    Internet Archive
    https://web.archive.org/web/20230901163737/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Longines_505
    archivetier 2retrieved 2023-09-0114 facts on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20171031020215/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&172&2uswk&Record_1955_2
    archivetier 2retrieved 2017-10-311 fact on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/20171031000410/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&143&2uswk&Longines_501
    archivetier 2retrieved 2017-10-311 fact on this page
  5. 5
    Internet Archive
    https://web.archive.org/web/20191017133039/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&archimedeshop&0&2uswk&Longines_508
    archivetier 2retrieved 2019-10-171 fact on this page
  6. 6
    Internet Archive
    https://web.archive.org/web/20221127181212/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Longines_506
    archivetier 2retrieved 2022-11-271 fact on this page