Family line
MB&F Legacy Machine Perpetual
Based-on star (WatchBase sense)2 calibers1 lineage edges0 related edgesdesign:mb-f-lm-perpetualcompare specs · 2
This profile traverses clone_of · derived_from · ebauche_of · revision_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) · 2 calibersHeritage · 2 calibersParts cluster (Jules Borel sense) · 1 calibersManufacturer-internal (Ranfft 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 |
|---|---|---|---|---|---|
| MB&F Legacy Machine Split Escapement | derived from lineage | MB&F Legacy Machine Perpetual | accepted | interchange note: The perpetual calendar is removed and the escapement is split so that the anchor and escape wheel sit below the plate while the balance stays suspended above the dial. Date and power reserve remain. · component delta: calendar_mechanism,escapement_architecture |
Sources
- 1Monochrome Watcheshttps://monochrome-watches.com/retrospective-all-mbandf-legacy-machine-since-2011-teaser-lmx/presstier 2retrieved 2026-08-241 fact on this page