CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.

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

A. Lange & Söhne L156.1 Datomatic

A. Lange & Söhneintroduced 2023design:lange-l156-1compare specs · 2

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
A. Lange & Söhne L156.1 Datomatic
movementproducer: A. Lange & Söhne
IIDesignations — 0 names

No designation is recorded for this design yet.

IIIExecutions — 1 article

No source in this corpus states which grade any A. Lange & Söhne L156.1 Datomatic 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:lange-l156-1/unknown

Specifications

PropertyValueScopeStatusSources
Total components
build.component_count
516—accepted
Jewels
build.jewel_count
52—accepted
Chronograph clutch
cmpl.chrono_clutch
vertical—accepted
Chronograph
cmpl.has_chronograph
yes—accepted
Date display
disp.date_display_type
big_date—accepted
Day
disp.has_day
yes—accepted
Movement diameter
geom.diameter_mm
34.9 mm—accepted
Movement height
geom.height_mm
8.4 mm—accepted
Swiss movement
origin.swiss_movement
no—accepted
Frequency
osc.frequency_vph
28800 vph—accepted
Hairspring supplier
osc.hairspring_supplier
agent:a-lange-sohne—accepted
Power reserve (typical)
power.reserve_typical_h
50 h—accepted
Introduced
prod.intro_year
2023—accepted
Caliber supply type
prod.supply_type
in_house—accepted
Winding mode
wind.mode
automatic—accepted
Rotor architecture
wind.rotor_architecture
central—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 · 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 · 1

Stored in a different table from descent. A successor is not a child.

  • A. Lange & Söhne L951.1
    no derivation between

    A different chronograph architecture, not a rotor-equipped Datograph: the L156.1 uses a vertical clutch and a dynamic reset-to-zero driven by a heart cam on the minute wheel, where the L951.x uses a lateral clutch.

Used by

1
models
1
brands
1
grade unknown

grain 1 reference — every record here sits at the same level, so the count is one kind of thing.

Every brand here is on the strength of a source that names a watch and states this movement. Brands that use this caliber and nobody has sourced yet are absent — this is what has been researched, not what exists.

Sources

  1. 1
    alange-soehne.com
    https://www.alange-soehne.com/us-en/manufacture/art-of-watchmaking/manufacture-movements
    manufacturertier 1retrieved 2026-08-244 facts on this page
  2. 2
    alange-soehne.com
    https://www.alange-soehne.com/us-en/timepieces/odysseus/odysseus-chronograph/odysseus-chronograph-in-stainless-steel-463-178
    manufacturertier 1retrieved 2026-08-244 facts on this page
  3. 3
    Monochrome Watches
    https://monochrome-watches.com/a-lange-and-sohne-odysseus-chronograph-hands-on-review-specs-price/
    presstier 2retrieved 2026-08-2412 facts on this page
  4. 4
    alange-soehne.com
    https://www.alange-soehne.com/us-en/manufacture/news-and-events/25-years-of-datograph
    manufacturertier 1retrieved 2026-08-241 fact on this page