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-9l/unknown
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 9L (=Longines 25.17)
⟨1945 or earlier⟩ range only — no source gives an introduction yearread from sources · staged
not after 1945
a dated example movement, 1945“1945: 6471186, LXW, Longines Watch Co Swiss, 9L, 17 Jewels - Longines”
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 9L (=Longines 25.17)
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 9L (=Longines 25.17) 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.
Specifications
| Property | Value | Scope | Status | Sources |
|---|---|---|---|---|
Jewels build.jewel_count | 17 | — | accepted | |
Movement shape build.shape | rectangular | — | staged | |
Seconds display disp.seconds_display | small | — | staged | |
Movement diameter geom.diameter_mm | 26 mm | — | accepted | |
Movement height geom.height_mm | 3.5 mm | — | accepted | |
Movement height geom.height_mm | 4 mm | — | accepted | |
Swiss movement origin.swiss_movement | yes | — | accepted | |
Frequency osc.frequency_vph | 18000 vph | — | accepted | |
Regulator system name osc.regulator_system_name | Yes | — | accepted | |
Power reserve (typical) power.reserve_typical_h | 38 h | — | accepted | |
Power reserve (typical) power.reserve_typical_h | 43 h | — | accepted | |
Hacking seconds wind.has_hacking_seconds | no | — | accepted | |
Winding mode wind.mode | manual | — | 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.
Related · 3
Stored in a different table from descent. A successor is not a child.
- Longines 25.17 (=Longines 9L new)functional equivalent of
- Longines 25.17 (=Longines 9L new)functional equivalent of
- Longines 25.17 new (=Longines 9L new)functional equivalent of
Curated family labels
Longines family/generations block
authority: ranfft7 members
Sources
- 1Caliber Cornerhttps://calibercorner.com/longines-caliber-9lcurated dbtier 2retrieved 2026-09-089 facts on this pagecited, never crawled
- 2Internet Archivehttps://web.archive.org/web/20210418152614/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&ae&2uswk&Longines_9Larchivetier 2retrieved 2021-04-189 facts on this page
- 3Internet Archivehttps://web.archive.org/web/20171030235926/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&142&2uswk&Longines_25_17archivetier 2retrieved 2017-10-302 facts on this page
- 4Internet Archivehttps://web.archive.org/web/20171030235932/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&142&2uswk&Longines_25_17neuarchivetier 2retrieved 2017-10-301 fact on this page
- 5Internet Archivehttps://web.archive.org/web/20171030235928/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&142&2uswk&Longines_25_173archivetier 2retrieved 2017-10-301 fact on this page
- 6Internet Archivehttps://web.archive.org/web/20171030235930/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&142&2uswk&Longines_25_17ABCarchivetier 2retrieved 2017-10-301 fact on this page
- 7Internet Archivehttps://web.archive.org/web/20220816081526/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Longines_9LT&archivetier 2retrieved 2022-08-161 fact on this page