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:patek-philippe-ch-27-70-q/unknown
accepteddisputed
composite
Patek Philippe CH 27-70 Q
bounding evidence — no range is drawn on the era axis
not after 2009
Patek Philippe CH 29-535 PS · introduced 2009 (sourced)
not before 1942
Lemania 2310 · introduced 1942 (sourced)
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
Patek Philippe CH 27-70 Q
compositedesigner: Patek Philippeproducer: Patek Philippe
IIDesignations — 0 names
No designation is recorded for this design yet.
IIIExecutions — 1 article
No source in this corpus states which grade any Patek Philippe CH 27-70 Q 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 |
|---|---|---|---|---|
Calendar class cmpl.calendar_class | perpetual | — | accepted | |
Chronograph actuation cmpl.chrono_actuation | column_wheel | — | accepted | |
Chronograph cmpl.has_chronograph | yes | — | accepted | |
Introduced prod.intro_year | 1986 | — | accepted | |
Production status prod.status | discontinued | — | accepted | |
Winding mode wind.mode | manual | — | accepted |
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.
- Lemania 2310derived from
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 · 1
Stored in a different table from descent. A successor is not a child.
- Patek Philippe CH 29-535 PSsuccessor of
Replaced the Lemania-based chronograph in Patek's own line. Succession, not descent — which is why this edge lives in the related lane.
Sources
- 1Monochrome Watcheshttps://monochrome-watches.com/history-of-the-patek-philippe-perpetual-calendar-chronograph-1518-2499-3970-5020-5970-5270-in-depth-guide/presstier 2retrieved 2026-08-2411 facts on this page
- 2Monochrome Watcheshttps://monochrome-watches.com/the-battle-of-high-end-chronographs-part-1-patek-philippe-5172g/presstier 2retrieved 2026-08-242 facts on this page
- 3Monochrome Watcheshttps://monochrome-watches.com/review-patek-philippe-chronograph-5172g-price/presstier 2retrieved 2026-08-241 fact on this page
- 4Monochrome Watcheshttps://monochrome-watches.com/in-depth-the-omega-flightmaster-the-special-one/presstier 2retrieved 2026-08-241 fact on this page
- 5Monochrome Watcheshttps://monochrome-watches.com/omega-reintroduces-the-iconic-calibre-321-chronograph-column-wheel-2019/presstier 2retrieved 2026-08-242 facts on this page
- 6Monochrome Watcheshttps://monochrome-watches.com/omega-co-axial-escapement-technical-perspective/presstier 2retrieved 2026-08-241 fact on this page
- 7Internet Archivehttps://web.archive.org/web/20230901194459/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_861archivetier 2retrieved 2023-09-011 fact on this page
- 8Internet Archivehttps://web.archive.org/web/20230901194604/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_862archivetier 2retrieved 2023-09-011 fact on this page