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

Family line

ETA 2804-2

Based-on star (WatchBase sense)28 calibers29 lineage edges5 related edges5 disputeddesign:eta-2804-2compare specs · 10

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) · 28 calibersHeritage · 28 calibersParts cluster (Jules Borel sense) · 1 calibersManufacturer-internal (Ranfft sense) · 1 calibers
100%overlaydrag to pan · ⌘/ctrl + scroll to zoom · hover a caliber to isolate its line
CONTESTED · 2 POSITIONSCONTESTED · 1 POSITIONSno derivation between ?drop-in for ?derived from ?variant of ?revision ofderived fromderived fromvariant ofderived fromvariant ofvariant ofvariant ofclone ofclone ofclone ofclone of ?clone ofclone ofclone ofclone ofclone ofclone ofrevision ofrevision ofclone ofclone ofclone ofclone ofébauche ofébauche ofébauche ofETA 2804-2 — open caliber pageETA 2804-2—ETA SA Manufacture Horlogère…1 exec · grade ?ETA 2824 — open caliber pageETA 28241971ETA SA Manufacture Horlogère…1 exec · grade ?ETA 2824-2 — open caliber pageETA 2824-21982ETA SA Manufacture Horlogère Suisse7 execETA 2826-2 — open caliber pageETA 2826-2—ETA SA Manufacture Horlogère…1 exec · grade ?ETA 2836-2 — open caliber pageETA 2836-2—ETA SA Manufacture Horlogère…1 exec · grade ?ETA C07.111 — open caliber pageETA C07.1112011ETA SA Manufacture Horlogère…2 exec · grade ?ETA C07.141 — open caliber pageETA C07.141—ETA SA Manufacture Horlogère…1 exec · grade ?ETA C07.611 — open caliber pageETA C07.611—ETA SA Manufacture Horlogère…2 exec · grade ?ETA C07.811 — open caliber pageETA C07.811—ETA SA Manufacture Horlogère…1 exec · grade ?Eterna 12824 (ETA 2824) — open caliber pageEterna 12824 (ETA 282…1975maker not sourced1 exec · grade ?Eterna 12825 (ETA 2824) — open caliber pageEterna 12825 (ETA 282…1975maker not sourced1 exec · grade ?Eterna 1427 — open caliber pageEterna 14271955Eterna …1 exec · grade ?Ginault 7275 — open caliber pageGinault 7275—Ginau…1 exec · grade ?Hangzhou 6300 / 6301 — open caliber pageHangzhou 6300 / 6301—Hangzhou Watch Facto…1 exec · grade ?Hangzhou 6311 — open caliber pageHangzhou 6311—Hangzhou Watch Facto…1 exec · grade ?PT5000 — open caliber pagePT5000—H.K. Precision Technology (H…1 exec · grade ?ISA S280 — open caliber pageISA S280—ISA (Industrie Suisse d'Auto…1 exec · grade ?Landeron L24 — open caliber pageLanderon L24—Landeron / DEPA Swiss1 exec · grade ?Longines 633.1 (ETA 2824) — open caliber pageLongines 633.1 (ETA 282…1971maker not sourced1 exec · grade ?Liaoning Peacock SL-3000 — open caliber pageLiaoning Peacock SL-3000—Liaoning Peacock1 exec · grade ?Sea-Gull ST21 — open caliber pageSea-Gull ST21—Tianjin Sea-Gull Watch Group1 exec · grade ?Sea-Gull ST2130 / TY2130 — open caliber pageSea-Gull ST2130 / TY2130—Tianjin Sea-Gull Watch Group1 exec · grade ?Sellita SW200 — open caliber pageSellita SW2002003Sellita Watch Co S.A.1 exec · grade ?Sellita SW200-1 — open caliber pageSellita SW200-1—Sellita Watch Co S.A.8 execSellita SW200-2 Power+ — open caliber pageSellita SW200-2 Power+—Sellita Watch Co S.A.1 exec · grade ?Soprod P024 — open caliber pageSoprod P024—Soprod …1 exec · grade ?STP1-11 — open caliber pageSTP1-11—Swiss Technology Production …1 exec · grade ?Valanvron VAL-24 — open caliber pageValanvron VAL-24—Valanvr…1 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
ETA 2804-2derived from
lineage
ETA 2824-2disputed—
ETA 2804-2variant of
lineage
ETA 2824-2disputedcomponent delta: automatic_module
ETA 2824-2revision of
lineage
ETA 2824acceptedinterchange note: different spares: mainspring 1.20x11.0x0.115 mm -> 1.25x11.0x0.125 mm; stem W3408 -> W3738 · component delta: mainspring,keyless_works
ETA 2824-2derived from
lineage
Eterna 1427accepted—
ETA 2826-2derived from
lineage
ETA 2824-2accepted—
ETA 2836-2variant of
lineage
ETA 2824-2acceptedcomponent delta: calendar_mechanism
ETA C07.111derived from
lineage
ETA 2824-2acceptedinterchange note: power reserve extended from ~38 h to 80 h — same architecture, reworked barrel/gearing/regulation. DE-1 fires. · component delta: barrel,gear_train
ETA C07.141variant of
lineage
ETA C07.111acceptedcomponent delta: calendar_mechanism
ETA C07.611variant of
lineage
ETA C07.111acceptedinterchange note: metal/ruby escapement and 25 jewels versus the C07.1xx synthetic escapement and 23 jewels · component delta: escapement_architecture
ETA C07.811variant of
lineage
ETA C07.111acceptedinterchange note: silicon hairspring, antimagnetic. Recorded as a note rather than a component_delta — see calibers/README.md 'Deviations from spec'.
Ginault 7275clone of
lineage
ETA 2824-2acceptedtrue clone
Hangzhou 6300 / 6301clone of
lineage
ETA 2824-2acceptedtrue clone
Hangzhou 6311clone of
lineage
ETA 2836-2acceptedtrue clone
PT5000clone of
lineage
ETA 2824-2disputedtrue clone
ISA S280clone of
lineage
ETA 2824-2acceptedtrue clone
Landeron L24clone of
lineage
ETA 2824-2acceptedtrue clone · interchange note: Seagull ébauches with Swiss finishing
Liaoning Peacock SL-3000clone of
lineage
ETA 2824-2acceptedtrue clone
Sea-Gull ST21clone of
lineage
ETA 2824-2acceptedtrue clone
Sea-Gull ST2130 / TY2130clone of
lineage
ETA 2824-2acceptedtrue clone
Sellita SW200-1clone of
lineage
ETA 2824-2acceptedtrue clone · interchange note: practitioner estimate ~90% parts overlap; SW200 steady pins on the plate vs ETA on the bridge; the SW200-1 balance bridge is a little different and is likely not swappable with a 2824-2 balance bridge
Sellita SW200-1revision of
lineage
Sellita SW200acceptedinterchange note: three components changed (balance bridge, escape wheel, ratchet wheel); all other parts of the SW200 are interchangeable with the SW200-1. Caliber Corner notes the ratchet-teeth issue is still experienced in the SW200-1. · component delta: balance_wheel,escape_wheel_treatment
Sellita SW200-2 Power+revision of
lineage
Sellita SW200-1accepted—
Sellita SW200clone of
lineage
ETA 2824-2acceptedtrue clone
Soprod P024clone of
lineage
ETA 2824-2acceptedtrue clone
STP1-11clone of
lineage
ETA 2824-2acceptedtrue clone
Valanvron VAL-24clone of
lineage
ETA 2824-2acceptedtrue clone
Eterna 12824 (ETA 2824)ébauche of
lineage
ETA 2824staged—
Eterna 12825 (ETA 2824)ébauche of
lineage
ETA 2824staged—
Longines 633.1 (ETA 2824)ébauche of
lineage
ETA 2824staged—
ETA 2804-2no derivation between
related
ETA 2824-2disputed—
PT5000drop-in for
related
ETA 2824-2disputedhand sizes 1.50/0.90/0.25 mm stated identical to the ETA 2824-2
design:kenissi-mt5602successor of
related
ETA 2824-2acceptedTHE ÉBAUCHE-TO-MANUFACTURE SWITCH, encoded as what it is: a commercial succession inside one brand's product, NOT a derivation. Tudor replaced the bought ETA 2824 in the Black Bay with the Kenissi-built MT5602, keeping the same 28,800 vph and nearly doubling the reserve (38 h -> 70 h). The row lives in the related table, so browsing the MT5602's ancestry will never walk into ETA.
design:ronda-r150different from
related
ETA 2824-2acceptedRonda's own positioning: not a copy, but the same casing dimensions. This is a RELATED edge and can never enter an ancestry path.
design:stp-stp1-21successor of
related
STP1-11acceptedsuccession within the clone line itself; no parts continuity is asserted by the source

Curated overlays

A curated family label is an attributed opinion about grouping, not a node in the graph. No edge can point at one, and membership never affects ancestry.

Sources

  1. 1
    Internet Archive
    https://web.archive.org/web/2023/https://watchbase.com/eta/caliber/2824-2
    archivetier 3retrieved 2026-08-244 facts on this page
  2. 2
    Caliber Corner
    https://calibercorner.com/eta-caliber-2824-2/
    curated dbtier 2retrieved 2026-08-242 facts on this pagecited, never crawled
  3. 3
    Internet Archive
    https://web.archive.org/web/2021/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&ETA_2824
    archivetier 2retrieved 2026-08-242 facts on this page
  4. 4
    Internet Archive
    https://web.archive.org/web/2021/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&ETA_2824_2
    archivetier 2retrieved 2026-08-243 facts on this page
  5. 5
    Caliber Corner
    https://calibercorner.com/eta-caliber-2836-2/
    curated dbtier 2retrieved 2026-08-241 fact on this pagecited, never crawled
  6. 6
    Monochrome Watches
    https://monochrome-watches.com/swatch-groups-powermatic-movement-a-powerful-entry-level-engine/
    presstier 2retrieved 2026-08-241 fact on this page
  7. 7
    professionalwatches.com
    https://professionalwatches.com/tissot-caliber-c07-111/
    presstier 2retrieved 2026-08-241 fact on this page
  8. 8
    chrono24.com
    https://www.chrono24.com/magazine/eta-movements-from-the-2824-2-to-the-powermatic-80-p_80840/
    presstier 2retrieved 2026-08-241 fact on this page
  9. 9
    Caliber Corner
    https://calibercorner.com/tissot-caliber-powermatic-80/
    curated dbtier 2retrieved 2026-08-243 facts on this pagecited, never crawled
  10. 10
    watchuseek.com
    https://www.watchuseek.com/threads/powermatic-80.5500630/page-2
    forumtier 4retrieved 2026-08-242 facts on this page
  11. 11
    Caliber Corner
    https://calibercorner.com/eta-2824-clones/
    curated dbtier 2retrieved 2026-08-2410 facts on this pagecited, never crawled
  12. 12
    chinesewatchwiki.net
    https://chinesewatchwiki.net/Clone_movements
    wikitier 3retrieved 2026-08-243 facts on this page
  13. 13
    Caliber Corner
    https://calibercorner.com/hk-precision-technology-caliber-pt5000/
    curated dbtier 2retrieved 2026-08-242 facts on this pagecited, never crawled
  14. 14
    Watchguy (service logs)
    https://watchguy.co.uk/comparison-sea-gull-st2130-eta-2824-2-peacock-sl3000/
    first handtier 2retrieved 2026-08-241 fact on this page
  15. 15
    chinesewatchwiki.net
    https://chinesewatchwiki.net/Tianjin_Seagull
    wikitier 3retrieved 2026-08-242 facts on this page
  16. 16
    17jewels
    https://17jewels.info/movements/s/sea-gull/sea-gull-st2130/
    curated dbtier 3retrieved 2026-08-241 fact on this page
  17. 17
    Caliber Corner
    https://calibercorner.com/sellita-caliber-sw200-1/
    curated dbtier 2retrieved 2026-08-242 facts on this pagecited, never crawled
  18. 18
    watchrepairtalk.com
    https://www.watchrepairtalk.com/topic/10405-sellitta-sw200-1-eta-2824-2-parts-interchangeability/
    forumtier 4retrieved 2026-08-241 fact on this page
  19. 19
    Sellita SA
    https://www.sellita.ch/
    manufacturertier 1retrieved 2026-08-241 fact on this page
  20. 20
    Monochrome Watches
    https://monochrome-watches.com/a-technical-perspective-industry-news-sellita-sw200-2-power-automatic-movement-upgrade-specs/
    presstier 2retrieved 2026-08-241 fact on this page
  21. 21
    Monochrome Watches
    https://monochrome-watches.com/inside-sellita-the-giant-supplier-of-mechanical-movements-behind-the-scenes-watch-industry/
    presstier 2retrieved 2026-08-241 fact on this page
  22. 22
    Wikipedia
    https://en.wikipedia.org/wiki/Sellita
    wikitier 3retrieved 2026-08-241 fact on this page
  23. 23
    Caliber Corner
    https://calibercorner.com/stp-caliber-stp1-11/
    curated dbtier 2retrieved 2026-08-242 facts on this pagecited, never crawled
  24. 24
    Internet Archive
    https://web.archive.org/web/20191021052603/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Eterna_12824
    archivetier 2retrieved 2019-10-211 fact on this page
  25. 25
    Internet Archive
    https://web.archive.org/web/20191021031111/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Eterna_12825
    archivetier 2retrieved 2019-10-211 fact on this page
  26. 26
    Internet Archive
    https://web.archive.org/web/20171031000436/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&143&2uswk&Longines_633_1
    archivetier 2retrieved 2017-10-311 fact on this page
  27. 27
    Monochrome Watches
    https://monochrome-watches.com/history-tudor-black-bay-collection-2012-2024-including-all-models-all-movement-bb58-bb54-gmt-in-depth-recap/
    presstier 2retrieved 2026-08-241 fact on this page
  28. 28
    Caliber Corner
    https://calibercorner.com/ronda-caliber-r150/
    curated dbtier 2retrieved 2026-08-241 fact on this pagecited, never crawled