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:rolex-72/unknown
accepteddisputed
movement
Rolex 72 (Valjoux 72)
bounding evidence — no range is drawn on the era axis
not after 1960
a dated example movement, ca. 1955 (+5 yr, the source says “circa”)“ca. 1955: Montres Rolex S.A., Geneva Swiss, Adj. to 3 Positions, 17 Jewels, Swiss Made Fabr. Suisse; Kif-Flector”
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
Rolex 72 (Valjoux 72)
movement
IIDesignations — 0 names
No designation is recorded for this design yet.
IIIExecutions — 1 article
No source in this corpus states which grade any Rolex 72 (Valjoux 72) 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 | — | staged | |
Chronograph cmpl.has_chronograph | yes | — | staged | |
Seconds display disp.seconds_display | small | — | staged | |
Casing diameter geom.casing_diameter_mm | 30 mm | — | staged | |
Movement diameter geom.diameter_mm | 29.5 mm | — | staged | |
Movement height geom.height_mm | 6.95 mm | — | staged | |
Frequency osc.frequency_vph | 18000 vph | — | staged | |
Shock protection osc.shock_protection | kif | example movement, 1955 | staged | |
Power reserve (typical) power.reserve_typical_h | 48 h | — | staged | |
Discontinued prod.discontinued_year | 1974 | Valjoux 72 | staged | |
Introduced prod.intro_year | 1938 | Valjoux 72 | 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 · 1
Where this construction came from. Read up the arrows.
- Valjoux 72ébauche of
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.
Sources
- 1Internet Archivehttps://web.archive.org/web/20171031021553/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&175&2uswk&Rolex_72archivetier 2retrieved 2017-10-3114 facts on this page
- 2Internet Archivehttps://web.archive.org/web/20181106134948/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Dugena_4000archivetier 2retrieved 2018-11-061 fact on this page
- 3Internet Archivehttps://web.archive.org/web/20230618001554/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Rolex_727archivetier 2retrieved 2023-06-181 fact on this page