Family line
NOMOS Alpha
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.
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 Alpha | derived from lineage | Peseux / ETA 7001 | accepted | interchange note: NOT a clone and not sold as a drop-in: NOMOS took the Peseux architecture in-house rather than copying it for parts compatibility. Dimensions (23.3 × 2.6 mm), jewel count (17), frequency (21,600 vph) and power reserve (43 h) are all unchanged from the 7001; the plates become a Glashütte three-quarter plate, the decoration is German-school, and a stop-seconds mechanism is added. · component delta: main_plate,bridges,keyless_works,decoration | |
| 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 | |
| NOMOS DUW 4601 | derived from lineage | NOMOS Alpha | accepted | interchange note: Two-part construction: an Alpha-descended base in the centre plus a date ring on the PERIPHERY rather than a date disc on top, which is what keeps it at 2.8 mm with two date displays. Power reserve 43 h → 52 h on a new winding-spring material; skeletonised balance cock exposes the Swing System; quick-set date from the crown’s second position. · component delta: barrel,mainspring,gear_train,calendar_mechanism,escapement_architecture |
Sources
- 1Monochrome Watcheshttps://monochrome-watches.com/first-look-nomos-tetra-origins-ochra-terra-salvia-basalt-duw-4001-specs-price-live-pics/presstier 2retrieved 2026-08-242 facts on this page
- 2Monochrome Watcheshttps://monochrome-watches.com/revisiting-the-most-classic-nomos-the-35mm-hand-wound-tangente-review-price/presstier 2retrieved 2026-08-241 fact on this page
- 3Monochrome Watcheshttps://monochrome-watches.com/nomos-metro-38-date-duw-4601-hand-wound-price-review/presstier 2retrieved 2026-08-241 fact on this page
- 4Monochrome Watcheshttps://monochrome-watches.com/nomos-tangente-2date-new-hand-wound-calibre-duw-4601-in-house-movement-review-specs-price/presstier 2retrieved 2026-08-241 fact on this page