Family line
NOMOS Alpha
Manufacturer-internal (Ranfft sense)2 calibers1 lineage edges0 related edgesdesign:nomos-alphacompare specs · 2
This profile traverses revision_of · variant_of and drops disputed edges. Every edge in this view carries at least one reference.
Same caliber, other senses of “family”Everything (debug) · 6 calibersEverything (debug) · 4 calibersHeritage · 6 calibersHeritage · 4 calibersParts cluster (Jules Borel sense) · 1 calibersBased-on star (WatchBase sense) · 6 calibersBased-on star (WatchBase sense) · 4 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 |
|---|---|---|---|---|---|
| NOMOS DUW 4001 | revision of lineage | NOMOS Alpha | accepted | interchange note: Published specification otherwise identical to the Alpha’s: 17 jewels, 23.3 × 2.6 mm, 21,600 vph, 43 h, hacking small seconds. The delta is the regulating organ, which moves from an outsourced module to the in-house Swing System. · component delta: escapement_architecture,balance_wheel,balance_spring |
Sources
- 1Monochrome Watcheshttps://monochrome-watches.com/first-look-nomos-tetra-origins-ochra-terra-salvia-basalt-duw-4001-specs-price-live-pics/presstier 2retrieved 2026-08-241 fact on this page