Family line
Credor 7R14
Based-on star (WatchBase sense)2 calibers1 lineage edges0 related edgesdesign:credor-7r14compare 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 |
|---|---|---|---|---|---|
| Grand Seiko 9R02 | derived from lineage | Credor 7R14 | accepted | interchange note: The stated improvements are in power storage: two mainsprings in parallel in a single barrel plus the Torque Return System, taking the reserve from the 7R14’s 60 h to 84 h. Grand Seiko itself does not print this relationship anywhere read this round; the claim is Monochrome’s. · component delta: barrel,gear_train |
Sources
- 1Monochrome Watcheshttps://monochrome-watches.com/grand-seiko-masterpiece-collection-sbgz007-spring-drive-9r02-review-price/presstier 2retrieved 2026-08-241 fact on this page