Seiko — Tuna

Prospex

Built between 2020 and 2024, this 48 mm round Prospex Tuna runs an automatic Seiko movement and is rated to 200 m. It stands apart from the line's black-dial majority with a blue dial set in a stainless-steel case. Its larger diameter places it among the fuller-bodied automatics of the modern Tuna…

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Seiko Prospex SBDY053
ReferenceSBDY053
BrandSeiko
FamilyTuna
Produced2020–2024
StatusDiscontinued