unknownsynthetic
evidence: unknown
no source states which grade this article was bought at — this row exists so 'unknown' stays countable instead of becoming an assumption
exec:mb-f-lm-perpetual/unknown
accepteddisputed
movement
MB&F Legacy Machine Perpetual
MB&F (Max Büsser & Friends)Stephen McDonnellintroduced 2015design:mb-f-lm-perpetualcompare specs · 2
Identity
A caliber is three separate things and this reference keeps them apart: the construction, the names it is sold under, and the article a brand actually bought. A watch model points at an execution — never at a bare construction — which is why “same caliber” is almost never a complete answer.
IDesign — the construction
MB&F Legacy Machine Perpetual
movementcommissioned_by: MB&F (Max Büsser & Friends)designer: Stephen McDonnell
IIDesignations — 0 names
No designation is recorded for this design yet.
IIIExecutions — 1 article
No source in this corpus states which grade any MB&F Legacy Machine Perpetual was bought at. That unknown is stored as a real row rather than left blank, so it can be counted, filtered and excluded from any comparison that would otherwise assume parity.
Specifications
| Property | Value | Scope | Status | Sources |
|---|---|---|---|---|
Total components build.component_count | 581 | — | accepted | |
Calendar class cmpl.calendar_class | perpetual | — | accepted | |
Power reserve (typical) power.reserve_typical_h | 72 h | — | accepted | |
Introduced prod.intro_year | 2015 | — | accepted |
Lineage
The same relationships as the tree at the top of this page, with their sources. An absence in a column means no source stated one.
Ancestors · 0
Where this construction came from. Read up the arrows.
None recorded. An absence here means no source stated one, not that none exists.
Descendants · 1
What came from it — revisions, variants, clones, licensed copies.
- MB&F Legacy Machine Split Escapementderived from
Related · 0
Stored in a different table from descent. A successor is not a child.
None recorded. An absence here means no source stated one, not that none exists.
Sources
- 1Monochrome Watcheshttps://monochrome-watches.com/retrospective-all-mbandf-legacy-machine-since-2011-teaser-lmx/presstier 2retrieved 2026-08-247 facts on this page