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

Family line

A. Lange & Söhne L951.1

Everything (debug)3 calibers2 lineage edges1 related edgesdesign:lange-l951-1compare specs · 3

This profile traverses clone_of · derived_from · design_imitation_of · ebauche_of · incorporates_module · licensed_copy_of · module_on · revision_of · tooling_transfer_of · variant_of and keeps disputed edges. Every edge in this view carries at least one reference.

Same caliber, other senses of “family”Heritage · 3 calibersParts cluster (Jules Borel sense) · 1 calibersManufacturer-internal (Ranfft sense) · 2 calibersBased-on star (WatchBase sense) · 3 calibers
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derived fromrevision ofA. Lange & Söhne L951.1 — open caliber pageA. Lange & Söhne L951…1999A. Lange & Söhne1 exec · grade ?A. Lange & Söhne L951.5 — open caliber pageA. Lange & Söhne L951.5—A. Lange & Söhne1 exec · grade ?A. Lange & Söhne L951.6 — open caliber pageA. Lange & Söhne L951…2012A. Lange & Söhne2 exec · grade ?
Edge types in this family
accepteddisputedcontested region

Generations run left to right, ancestors first, and the axis along the top is ordinal rather than linear: each band is one generation, labelled with the range of sourced introduction years it contains. A band reads “—” when no caliber in it has a year anyone published — the gap is the finding, not a rendering failure. Dotted arcs above and below the drawing are related edges — successor, drop-in, no-derivation — which are stored in a different table from lineage and can never form part of an ancestry path.

Every edge in this view

CaliberRelationshipToStatusDetailSources
A. Lange & Söhne L951.5derived from
lineage
A. Lange & Söhne L951.1acceptedcomponent delta: calendar_mechanism
A. Lange & Söhne L951.6revision of
lineage
A. Lange & Söhne L951.1acceptedinterchange note: Chronograph architecture carried over unchanged (column wheel, lateral clutch, flyback, precisely jumping minute counter, 18,000 vph); the start/stop and reset levers were subtly revised. Part count rises 405 → 451, largely for the added power-reserve indication. · component delta: barrel,mainspring,balance_wheel,balance_spring,regulation_method
design:lange-l156-1no derivation between
related
A. Lange & Söhne L951.1acceptedA 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.

Sources

  1. 1
    alange-soehne.com
    https://www.alange-soehne.com/us-en/timepieces/1815/1815-chronograph/1815-chronograph-in-750-white-gold-414-026
    manufacturertier 1retrieved 2026-08-241 fact on this page
  2. 2
    Monochrome Watches
    https://monochrome-watches.com/a-lange-and-sohne-odysseus-chronograph-hands-on-review-specs-price/
    presstier 2retrieved 2026-08-242 facts on this page
  3. 3
    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
  4. 4
    Monochrome Watches
    https://monochrome-watches.com/in-depth-retrospective-a-lange-sohne-datograph-1999-until-now-complete-history-review-datograph-up-down-25th-anniversary/
    presstier 2retrieved 2026-08-241 fact on this page