Family line
A. Lange & Söhne L121.1
Heritage1 calibers0 lineage edges1 related edgesdesign:lange-l121-1
This profile traverses clone_of · derived_from · ebauche_of · 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”Everything (debug) · 1 calibersParts cluster (Jules Borel sense) · 1 calibersManufacturer-internal (Ranfft sense) · 1 calibersBased-on star (WatchBase sense) · 1 calibers
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
| Caliber | Relationship | To | Status | Detail | Sources |
|---|---|---|---|---|---|
| A. Lange & Söhne L121.1 | successor of related | design:lange-l901-0 | accepted | Replaced the L901.0 in the Lange 1 from 2015; same 38.5 mm case, same dial layout, same 72 h from twin barrels. What changed: balance position, plate architecture, gear train, oscillator and date switching. |
Sources
- 1Monochrome Watcheshttps://monochrome-watches.com/comparing-the-old-and-the-new-a-lange-sohne-lange-1-live-pics-specs-price/presstier 2retrieved 2026-08-241 fact on this page
- 2Monochrome Watcheshttps://monochrome-watches.com/in-depth-ultimate-guide-to-the-a-lange-sohne-lange-1-collection-incl-video/presstier 2retrieved 2026-08-241 fact on this page