CALIBER/browser
CORPUS EXPORT · 12269 calibers · 59387 family views · round round/2026-09-08Compiled from app/public/data/ · corpus 70c0140eba.

Family line

Audemars Piguet 2120

Heritage11 calibers10 lineage edges2 related edgesdesign:ap-2120compare specs · 10

This profile traverses clone_of · derived_from · ebauche_of · 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.

Same caliber, other senses of “family”Everything (debug) · 11 calibersParts cluster (Jules Borel sense) · 1 calibersManufacturer-internal (Ranfft sense) · 1 calibersBased-on star (WatchBase sense) · 10 calibers
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module onébauche ofderived fromderived fromébauche ofderived fromébauche ofvariant ofvariant ofderived fromAudemars Piguet 2120 — open caliber pageAudemars Piguet 21201967Audemars Piguet Holding SA1 exec · grade ?Audemars Piguet 2120/2800 — open caliber pageAudemars Piguet 2120/28001978Audemars Piguet Holding SA1 exec · grade ?Audemars Piguet 2121 — open caliber pageAudemars Piguet 21211970Audemars Piguet Holding SA1 exec · grade ?Audemars Piguet 5133 — open caliber pageAudemars Piguet 51332018Audemars Piguet Holding SA1 exec · grade ?Jaeger-LeCoultre 920 — open caliber pageJaeger-LeCoultre 9201967Manufacture Jaeger…ebauche · 1 exec · grade ?Patek Philippe 28-255 C — open caliber pagePatek Philippe 28-255 C1976Manufacture Jaeger-LeCoultre…1 exec · grade ?Vacheron Constantin 1120 — open caliber pageVacheron Constantin 1120—Vacheron Constant…2 exec · grade ?Vacheron Constantin 1120 QP — open caliber pageVacheron Constantin 1120 …1983Vacheron Constantin2 exec · grade ?Vacheron Constantin 1121 — open caliber pageVacheron Constantin 11…1977Vacheron Constantin1 exec · grade ?Vacheron Constantin 1122 — open caliber pageVacheron Constantin 1122—Vacheron Constant…1 exec · grade ?Vacheron Constantin 1222 — open caliber pageVacheron Constantin 12…2006Vacheron Constantin1 exec · grade ?
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

CaliberRelationshipToStatusDetailSources
Audemars Piguet 2120/2800module on
lineage
Audemars Piguet 2120acceptedinterchange note: component_delta is not an allowed qualifier on module_on, so the delta is stated here: the whole delta IS the complication module, supplied by Dubois-Dépraz, an agent this corpus already holds. There is no design node for that module in this round — see README-ap-jlc.md.
Audemars Piguet 2120ébauche of
lineage
Jaeger-LeCoultre 920acceptedinterchange note: DIRECTION: lineage_edge is child → parent (db-design.md §6), so this row reads 'the AP 2120 is AP's finished, AP-designated execution of the LeCoultre 920 ébauche'. Vacheron Constantin's 1120/1121 and Patek Philippe's 28-255 are the sibling branches off the same parent node and are authored on their own side of the corpus.
Audemars Piguet 2121derived from
lineage
Audemars Piguet 2120acceptedinterchange note: the date is the whole delta; Monochrome lists winding direction, frequency, shock protection and finishing as carried over unchanged from the 2120 · component delta: calendar_mechanism
Audemars Piguet 5133derived from
lineage
Audemars Piguet 2120acceptedinterchange note: unlike the 1978 calibre 2120/2800, this one is NOT a module on the 2120 — the source is explicit that the calendar is integrated rather than stacked. That is why this edge is derived_from and the 2120/2800's is module_on. · component delta: calendar_mechanism
Patek Philippe 28-255 Cébauche of
lineage
Jaeger-LeCoultre 920acceptedinterchange note: DIRECTION: lineage_edge is child → parent (db-design.md §6), so this row reads 'this is the maison's own finished, own-designated execution of the LeCoultre 920 ébauche'. Audemars Piguet's 2120/2121 and the other maison's branch are the sibling branches off the same parent node. 3.05 mm with the date mechanism against 2.45 mm for the time-only base.
Vacheron Constantin 1120 QPderived from
lineage
Jaeger-LeCoultre 920acceptedinterchange note: Perpetual-calendar module on the 920 base.
Vacheron Constantin 1120ébauche of
lineage
Jaeger-LeCoultre 920acceptedinterchange note: DIRECTION: lineage_edge is child → parent (db-design.md §6), so this row reads 'this is the maison's own finished, own-designated execution of the LeCoultre 920 ébauche'. Audemars Piguet's 2120/2121 and the other maison's branch are the sibling branches off the same parent node.
Vacheron Constantin 1121variant of
lineage
Vacheron Constantin 1120acceptedinterchange note: 3.05 mm with date against 2.45 mm for the time-only 1120; both are Vacheron's executions of the Jaeger-LeCoultre 920 ébauche.
Vacheron Constantin 1122variant of
lineage
Vacheron Constantin 1120accepted—
Vacheron Constantin 1222derived from
lineage
Jaeger-LeCoultre 920accepted—
design:ap-7121successor of
related
Audemars Piguet 2121acceptedthe source calls the 7121 brand new and in-house-developed, and lists its differences from the 2121 as improvements rather than as a derivation. Commercial succession only — this row lives in related_edge and can never be walked into the JLC 920 ancestry.
design:vacheron-constantin-2455-2successor of
related
Vacheron Constantin 1120acceptedReplaced the 920-derived 1120 in the 222 re-edition; the source asserts no derivation between the two and none is encoded.

Sources

  1. 1
    Monochrome Watches
    https://monochrome-watches.com/history-of-the-audemars-piguet-royal-oak-perpetual-calendar-in-depth-review/
    presstier 2retrieved 2026-08-242 facts on this page
  2. 2
    Monochrome Watches
    https://monochrome-watches.com/audemars-piguet-royal-oak-jumbo-extra-thin-16202st-to-replace-the-15202st-video-review-price/
    presstier 2retrieved 2026-08-242 facts on this page
  3. 3
    Monochrome Watches
    https://monochrome-watches.com/complete-history-of-the-audemars-piguet-royal-oak-jumbo-series-5402-14802-15002-15202-16202-review/
    presstier 2retrieved 2026-08-243 facts on this page
  4. 4
    Monochrome Watches
    https://monochrome-watches.com/history-patek-philippe-nautilus-part-1-nautilus-3700/
    presstier 2retrieved 2026-08-241 fact on this page
  5. 5
    Monochrome Watches
    https://monochrome-watches.com/vacheron-constantin-overseas-ultra-thin-2000v-calibre-1120-sihh2016/
    presstier 2retrieved 2026-08-244 facts on this page
  6. 6
    Monochrome Watches
    https://monochrome-watches.com/2025-vacheron-constantin-traditionnelle-perpetual-calendar-ultra-thin-36mm-non-gemset-editions-review-price/
    presstier 2retrieved 2026-08-242 facts on this page
  7. 7
    Monochrome Watches
    https://monochrome-watches.com/2025-vacheron-constantin-222-steel-review-historiques-222-blue-dial-steel-luxury-sports-watch-price/
    presstier 2retrieved 2026-08-242 facts on this page
  8. 8
    Monochrome Watches
    https://monochrome-watches.com/history-vacheron-constantin-overseas-1970s-icon/
    presstier 2retrieved 2026-08-242 facts on this page