Family line
Roger W. Smith Series 2
Parts cluster (Jules Borel sense)1 calibers0 lineage edges1 related edgesdesign:roger-w-smith-series-2
This profile traverses no edge types and drops disputed edges. Every edge in this view carries at least one reference.
Same caliber, other senses of “family”Everything (debug) · 2 calibersHeritage · 2 calibersManufacturer-internal (Ranfft sense) · 2 calibersBased-on star (WatchBase sense) · 2 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 |
|---|---|---|---|---|---|
| Roger W. Smith Series 2 | different from related | design:omega-2500 | accepted | Both movements carry a Daniels co-axial escapement and they are not the same escapement: Smith's site says Omega used Daniels's slim-line version and only later moved to the original two-wheel-with-pinion form that the Series 2 was designed around. |
Sources
- 1rwsmithwatches.comhttps://rwsmithwatches.com/evolutionmanufacturertier 1retrieved 2026-08-241 fact on this page