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Seiko Prospex Sumo SPB103 vs Seiko Prospex 1965 Diver Re-creation SPB143

Seiko Prospex Sumo SPB103
SPB103J1
Seiko Prospex 1965 Diver Re-creation SPB143
Seiko Prospex 1965 Diver Re-creation SPB143
SPB143J1

Side-by-side at a glance. Click a watch above to open the full reference page.

Seiko SPB103J1Seiko SPB143J1
ModelProspex Sumo SPB103Prospex 1965 Diver Re-creation SPB143
CaliberSeiko Cal. 6R35 -- in-house automatic, 28,800bph, 70h PR, 24j; hackable, manual-wind; upgraded from 6R15; used widely in Presage and Prospex linesSeiko Cal. 6R35 -- in-house automatic, 28,800bph, 70h PR, 24j; hackable, manual-wind; upgraded from 6R15; used widely in Presage and Prospex lines
Case size45mm40.5mm
Lug-to-lug50mm46mm
Years produced2019–present2020–present
Brand tierenthusiastenthusiast
Eramodernmodern
Movement tierUnclassified movementUnclassified movement
Market median (excellent / full-set)n/an/a
Typical rangen/an/a
Confidencelowlow
Categoriesdive, sportdive, sport
Editorialyesyes

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Seiko Prospex Sumo SPB103 vs Seiko Prospex 1965 Diver Re-creation SPB143 | comparison | Grail Atlas