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:junghans-j47b-1/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
Junghans J47b/1
bounding evidence — no range is drawn on the era axis
not after 1940
a dated example movement, ca. 1935 (+5 yr, the source says “circa”)“1-2) ca. 1935: Junghans 47b/1”
not after 1944
a dated example movement, 1944“2-3) 1944: Junghans 47b/1 - M4”
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
Junghans J47b/1
movementproducer: Junghansarchive filing
IIDesignations — 0 names
No designation is recorded for this design yet.
IIIExecutions — 1 article
No source in this corpus states which grade any Junghans J47b/1 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 | 15 | — | staged | |
Seconds display disp.seconds_display | small | — | staged | |
Casing diameter geom.casing_diameter_mm | 42.7 mm | — | staged | |
Movement diameter geom.diameter_mm | 41.9 mm | — | staged | |
Movement height geom.height_mm | 5.25 mm | — | staged | |
Frequency osc.frequency_vph | 18000 vph | — | staged | |
Power reserve (typical) power.reserve_typical_h | 32 h | — | staged | |
Introduced prod.intro_year | 1930 | — | staged | |
Hacking seconds wind.has_hacking_seconds | yes | optional execution | 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
Junghans family/generations block
authority: ranfft9 members
Sources
- 1Internet Archivehttps://web.archive.org/web/20230901144118/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Junghans_J47b_1archivetier 2retrieved 2023-09-0114 facts on this page
- 2Internet Archivehttps://web.archive.org/web/20220119080108/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Junghans_J47e_1archivetier 2retrieved 2022-01-191 fact on this page
- 3Internet Archivehttps://web.archive.org/web/20230901144107/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Junghans_J47b_0archivetier 2retrieved 2023-09-011 fact on this page
- 4Internet Archivehttps://web.archive.org/web/20230901144128/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Junghans_J47c_0archivetier 2retrieved 2023-09-011 fact on this page