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

Family line

Alfred Rochat 7750 (Valjoux 7750)

Everything (debug)26 calibers25 lineage edges0 related edgesdesign:alfred-rochat-7750compare specs · 10

This profile traverses clone_of · derived_from · design_imitation_of · ebauche_of · incorporates_module · 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”Heritage · 26 calibersParts cluster (Jules Borel sense) · 1 calibersManufacturer-internal (Ranfft sense) · 1 calibersBased-on star (WatchBase sense) · 26 calibers
100%overlaydrag to pan · ⌘/ctrl + scroll to zoom · hover a caliber to isolate its line
derived fromderived fromclone ofderived fromvariant ofvariant ofvariant ofvariant ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofébauche ofvariant ofvariant ofAlfred Rochat 7750 (Valjoux 7750) — open caliber pageAlfred Rochat 7750 (Valjoux 775…—maker not sourced1 exec · grade ?BM 13750 (Valjoux 7750) — open caliber pageBM 13750 (Valjoux 775…1973maker not sourced1 exec · grade ?Dugena 4002 (Valjoux 7733) — open caliber pageDugena 4002 (Valjoux 773…1969maker not sourced1 exec · grade ?Fortis 2001 (Valjoux 7750) — open caliber pageFortis 2001 (Valjoux 7750)—maker not sourced1 exec · grade ?Hamilton H-31 — open caliber pageHamilton H-31—ETA SA Manufacture Horlogère…1 exec · grade ?IWC 790 (Valjoux 7750) — open caliber pageIWC 790 (Valjoux 775…1973maker not sourced1 exec · grade ?Junghans 688.11 (Valjoux 7733) — open caliber pageJunghans 688.11 (Valjoux 7733)—maker not sourced1 exec · grade ?La Joux-Perret L100 — open caliber pageLa Joux-Perret L100—Manufacture La Joux-Perret …1 exec · grade ?Omega 1150 (Valjoux 7751) — open caliber pageOmega 1150 (Valjoux 775…1990maker not sourced1 exec · grade ?Omega 1151 (Valjoux 7751) — open caliber pageOmega 1151 (Valjoux 775…1994maker not sourced1 exec · grade ?Omega 1152 (Valjoux 7750) — open caliber pageOmega 1152 (Valjoux 775…1995maker not sourced1 exec · grade ?Omega 1154 (Valjoux 7750) — open caliber pageOmega 1154 (Valjoux 775…1992maker not sourced1 exec · grade ?Omega 1155 (Valjoux 7750) — open caliber pageOmega 1155 (Valjoux 775…1990maker not sourced1 exec · grade ?Omega 1156 (Valjoux 7750) — open caliber pageOmega 1156 (Valjoux 775…1990maker not sourced1 exec · grade ?Omega 1158 (Valjoux 7750) — open caliber pageOmega 1158 (Valjoux 775…1991maker not sourced1 exec · grade ?Omega 1164 (Valjoux 7750) — open caliber pageOmega 1164 (Valjoux 775…1995maker not sourced1 exec · grade ?Sellita SW500 — open caliber pageSellita SW5002009Sellita Watch Co S.A.4 execTissot 2060 (Valjoux 7733) — open caliber pageTissot 2060 (Valjoux 773…1970maker not sourced1 exec · grade ?Valjoux 7733 — open caliber pageValjoux 77331969Valjoux SA1 exec · grade ?Valjoux / ETA 7750 — open caliber pageValjoux / ETA 77501974ETA SA Manufacture Horlogère…3 exec · grade ?Valjoux / ETA 7751 — open caliber pageValjoux / ETA 77511986ETA SA Manufacture Horlogère…1 exec · grade ?Valjoux / ETA 7753 — open caliber pageValjoux / ETA 7753—ETA SA Manufacture Horlogère…3 exec · grade ?Valjoux / ETA 7754 — open caliber pageValjoux / ETA 77542003ETA SA Manufacture Horlogère…1 exec · grade ?Valjoux 7758 (Valjoux 7750) — open caliber pageValjoux 7758 (Valjoux 775…1986maker not sourced1 exec · grade ?Valjoux 7770 (Valjoux 7750) — open caliber pageValjoux 7770 (Valjoux 7750)2004ETA SA Manufacture Horlogère…1 exec · grade ?Venus 188 / Valjoux 7730 — open caliber pageVenus 188 / Valjoux 77…1948Valjoux SA1 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
Hamilton H-31derived from
lineage
Valjoux / ETA 7753acceptedinterchange note: power reserve reworked from 42 h stock to 60 h — DE-1 fires on barrel/mainspring geometry · component delta: barrel,mainspring
La Joux-Perret L100derived from
lineage
Valjoux / ETA 7750acceptedinterchange note: column-wheel upgrade; the source explicitly says reworked, not a clone
Sellita SW500clone of
lineage
Valjoux / ETA 7750acceptedreworked clone · interchange note: Sellita redesigned the calendar driving wheels to remove the 7750's 8pm-2am date-set restriction — a clone that fixes a known defect of the original · component delta: calendar_mechanism
Valjoux 7733derived from
lineage
Venus 188 / Valjoux 7730acceptedinterchange note: cam-lever architecture; more than 2 million made
Valjoux / ETA 7750variant of
lineage
Valjoux 7733acceptedcomponent delta: automatic_module
Valjoux / ETA 7751variant of
lineage
Valjoux / ETA 7750acceptedcomponent delta: calendar_mechanism,complication_module
Valjoux / ETA 7753variant of
lineage
Valjoux / ETA 7750accepted—
Valjoux / ETA 7754variant of
lineage
Valjoux / ETA 7750acceptedcomponent delta: complication_module
Alfred Rochat 7750 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
BM 13750 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
Dugena 4002 (Valjoux 7733)ébauche of
lineage
Valjoux 7733staged—
Fortis 2001 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
IWC 790 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
Junghans 688.11 (Valjoux 7733)ébauche of
lineage
Valjoux 7733staged—
Omega 1150 (Valjoux 7751)ébauche of
lineage
Valjoux / ETA 7751staged—
Omega 1151 (Valjoux 7751)ébauche of
lineage
Valjoux / ETA 7751staged—
Omega 1152 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
Omega 1154 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
Omega 1155 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
Omega 1156 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
Omega 1158 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
Omega 1164 (Valjoux 7750)ébauche of
lineage
Valjoux / ETA 7750staged—
Tissot 2060 (Valjoux 7733)ébauche of
lineage
Valjoux 7733staged—
Valjoux 7758 (Valjoux 7750)variant of
lineage
Valjoux / ETA 7750staged—
Valjoux 7770 (Valjoux 7750)variant of
lineage
Valjoux / ETA 7750staged—

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
    Caliber Corner
    https://calibercorner.com/hamilton-caliber-h31/
    curated dbtier 2retrieved 2026-08-241 fact on this pagecited, never crawled
  2. 2
    WatchBase
    https://watchbase.com/hamilton/caliber/h-31
    archivetier 3retrieved 2026-08-241 fact on this pagecited, never crawled
  3. 3
    Monochrome Watches
    https://monochrome-watches.com/valjoux-7750-chronograph-history-50-years-technical-explanation-evolution-clones-in-depth-review/
    presstier 2retrieved 2026-08-247 facts on this page
  4. 4
    Caliber Corner
    https://calibercorner.com/sellita-caliber-sw500/
    curated dbtier 2retrieved 2026-08-241 fact on this pagecited, never crawled
  5. 5
    Caliber Corner
    https://calibercorner.com/eta-valjoux-caliber-7750/
    curated dbtier 2retrieved 2026-08-241 fact on this pagecited, never crawled
  6. 6
    Internet Archive
    https://web.archive.org/web/20181106092340/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Alfred_Rochat_7750
    archivetier 2retrieved 2018-11-061 fact on this page
  7. 7
    Internet Archive
    https://web.archive.org/web/20230905221303/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&BM_13750&
    archivetier 2retrieved 2023-09-051 fact on this page
  8. 8
    Internet Archive
    https://web.archive.org/web/20181106135001/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Dugena_4002
    archivetier 2retrieved 2018-11-062 facts on this page
  9. 9
    Internet Archive
    https://web.archive.org/web/20181107150926/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Fortis_2001
    archivetier 2retrieved 2018-11-071 fact on this page
  10. 10
    Internet Archive
    https://web.archive.org/web/20181107172737/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&IWC_790
    archivetier 2retrieved 2018-11-071 fact on this page
  11. 11
    Internet Archive
    https://web.archive.org/web/20171030230312/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&129&2uswk&Junghans_688_11
    archivetier 2retrieved 2017-10-301 fact on this page
  12. 12
    Internet Archive
    https://web.archive.org/web/20230901185932/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_1150
    archivetier 2retrieved 2023-09-011 fact on this page
  13. 13
    Internet Archive
    https://web.archive.org/web/20230901185941/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_1151
    archivetier 2retrieved 2023-09-011 fact on this page
  14. 14
    Internet Archive
    https://web.archive.org/web/20230901185951/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_1152
    archivetier 2retrieved 2023-09-011 fact on this page
  15. 15
    Internet Archive
    https://web.archive.org/web/20230901190007/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_1154
    archivetier 2retrieved 2023-09-011 fact on this page
  16. 16
    Internet Archive
    https://web.archive.org/web/20230901190119/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_1155
    archivetier 2retrieved 2023-09-011 fact on this page
  17. 17
    Internet Archive
    https://web.archive.org/web/20230901190233/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_1156
    archivetier 2retrieved 2023-09-011 fact on this page
  18. 18
    Internet Archive
    https://web.archive.org/web/20230901190247/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Omega_1158
    archivetier 2retrieved 2023-09-011 fact on this page
  19. 19
    Internet Archive
    https://web.archive.org/web/20171031005826/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&155&2uswk&Omega_1164
    archivetier 2retrieved 2017-10-311 fact on this page
  20. 20
    Internet Archive
    https://web.archive.org/web/20181108071335/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&a0&2uswk&Tissot_2060
    archivetier 2retrieved 2018-11-081 fact on this page
  21. 21
    Internet Archive
    https://web.archive.org/web/20230902010954/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Valjoux_7758
    archivetier 2retrieved 2023-09-021 fact on this page
  22. 22
    Internet Archive
    https://web.archive.org/web/20230902011016/http://ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Valjoux_7770
    archivetier 2retrieved 2023-09-021 fact on this page
  23. 23
    Internet Archive
    https://web.archive.org/web/20200808084925/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Dugena_4001
    archivetier 2retrieved 2020-08-081 fact on this page
  24. 24
    Internet Archive
    https://web.archive.org/web/20200923235047/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Dugena_4004
    archivetier 2retrieved 2020-09-231 fact on this page
  25. 25
    Internet Archive
    https://web.archive.org/web/20220816070722/http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Dugena_4003
    archivetier 2retrieved 2022-08-161 fact on this page