Image courtesy of Seiko Watch Corporation, official website

Prospex Sumo

The Sumo line: heavy 45mm steel case, the trade nickname for the original SBDC001 (2007). The SPB103 (blue) and SPB101 (black) re-introduced the family in 2019 with the 6R35 caliber and a slimmed case.

1 reference

References in this sub-line

Seiko Prospex Sumo SPB103 · SPB103J1
enthusiastmodernSeiko Cal. 6R35: in-house automatic, 21,600bph, 70h PR, 24j; hackable, manual-wind; upgraded from 6R15; used widely in Presage and Prospex lines45mm2019–presenteditorial
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