CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.
Family treeA. Lange & Söhne L043.1 — Heritage family: 2 calibers, 1 sourced lineage link.Drag to explore.
accepteddisputed

movement

A. Lange & Söhne L043.1

A. Lange & Söhneintroduced 2009design:lange-l043-1compare specs · 2
bounding evidence — no range is drawn on the era axis
not after 2019
A. Lange & Söhne L043.8 · introduced 2019 (sourced)you cannot derive from what does not exist · → derived from · rule IR-2 · depth 1 · acceptedthe 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
A. Lange & Söhne L043.1
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 L043.1 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.

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-l043-1/unknown

Specifications

PropertyValueScopeStatusSources
Total components
build.component_count
388—accepted
Power-reserve indicator
disp.has_power_reserve_indicator
yes—accepted
Seconds display
disp.seconds_display
small—accepted
Swiss movement
origin.swiss_movement
no—accepted
Frequency
osc.frequency_vph
18000 vph—accepted
Constant-force device
power.constant_force_device
constant_force_escapement—accepted
Power reserve (typical)
power.reserve_typical_h
36 h—accepted
Introduced
prod.intro_year
2009—accepted
Caliber supply type
prod.supply_type
in_house—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 · 0

Where this construction came from. Read up the arrows.

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.

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/zeitwerk/zeitwerk/zeitwerk-in-750-pink-gold-140-032
    manufacturertier 1retrieved 2026-08-246 facts on this page
  3. 3
    Monochrome Watches
    https://monochrome-watches.com/in-depth-guide-to-a-lange-sohne-zeitwerk-collection-all-models-explained-2009-2022/
    presstier 2retrieved 2026-08-246 facts on this page
  4. 4
    alange-soehne.com
    https://www.alange-soehne.com/us-en/timepieces/zeitwerk/zeitwerk-date/zeitwerk-date-in-750-white-gold-148-038
    manufacturertier 1retrieved 2026-08-241 fact on this page