CALIBER/browser
CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.
Family treePoljot 2616.1H — Heritage family: 3 calibers, 2 sourced lineage links.Drag to explore.
100%drag to pan · hover a caliber to isolate its line · scroll the page normallyopen the full family view →
derived fromderived fromPoljot 2609 — open caliber pagePoljot 26091972Poljot1 exec · grade ?Poljot 2614B — open caliber pagePoljot 2614B—Poljot1 exec · grade ?Poljot 2616.1H — the caliber this page is aboutPoljot 2616.…1972Poljot1 exec · grade ?
accepteddisputed
Sense of “family”Heritage · 3Everything (debug) · 3Parts cluster (Jules Borel sense) · 1Manufacturer-internal (Ranfft sense) · 1Based-on star (WatchBase sense) · 3Open the full family view →

movement

Poljot 2616.1H

Poljotarchive filingPoljotintroduced 1972design:poljot-2616-1hcompare specs · 2
bounding evidence — no range is drawn on the era axis
not after 1980
a dated example movement, ca. 1975 (+5 yr, the source says “circa”)“ca. 1975: 69786, 30 Jewels; Poljot”
not before 1972
Poljot 2609 · introduced 1972 (sourced)you cannot derive from what does not exist · ← derived from · rule IR-2 · depth 1 · stagedthe anchor's own source

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
Poljot 2616.1H
movementproducer: Poljotarchive filingproducer: Poljot
IIDesignations — 1 name
IssuerNameKindDisambiguated bySources
Poljot2616.1Hhouse—
IIIExecutions — 1 article

No source in this corpus states which grade any Poljot 2616.1H 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:poljot-2616-1h/unknown

Specifications

PropertyValueScopeStatusSources
Jewels
build.jewel_count
30—accepted
Date correction
disp.date_quickset
none—staged
Date
disp.has_date
yes—staged
Seconds display
disp.seconds_display
central—staged
Casing diameter
geom.casing_diameter_mm
27 mm—staged
Movement diameter
geom.diameter_mm
26 mm—staged
Movement height
geom.height_mm
5.5 mm—staged
Frequency
osc.frequency_vph
18000 vph—accepted
Power reserve (typical)
power.reserve_typical_h
37 h—staged
Introduced
prod.intro_year
1972—staged
Winding mode
wind.mode
automatic—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.

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

  1. 1
    Internet Archive
    https://web.archive.org/web/20230901213544/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Poljot_2616_1H
    archivetier 2retrieved 2023-09-0113 facts on this page
  2. 2
    17jewels
    https://17jewels.info/movements/p/poljot/poljot-2616-1h/
    curated dbtier 2retrieved 2026-08-285 facts on this page
  3. 3
    Internet Archive
    https://web.archive.org/web/20230301060113/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Poljot_2609
    archivetier 2retrieved 2023-03-011 fact on this page
  4. 4
    17jewels
    https://17jewels.info/movements/p/poljot/poljot-2614b/
    curated dbtier 2retrieved 2026-08-281 fact on this page