Seaborne Watches

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    Sourcing & Build

    Inferred
    Case origin
    China (inferred)
    Dial origin
    China (inferred)
    Hands origin
    China (inferred)
    Lume type
    Swiss Super-LumiNova BGW9
    Movements
    Seiko NH35A
    Seiko VK64

    Sourcing Notes: Seiko NH35A and VK64 movements confirmed. Osprey VK64 line is USA-designed, built and tested per Seaborne. Sea Venture case/dial origins inferred from industry norms and pricing.

    Cost Transparency

    🇺🇸

    Ships from Duxbury, United States

    Tariff-free

    No import duties for American buyers

    This brand assembles in the US — watches ship tariff-free to domestic addresses.

    5% of profits donated to coastal community organizations like the Cape Cod Commercial Fishermans Alliance.

    No import duty on domestically assembled watches. Brands like TSAO Baltimore, Nodus, Vaer, and Vortic ship tariff-free to US buyers.

    Tariffs are assessed based on where the watch is assembled, not where individual components originate. A watch with a Japanese movement assembled in the US incurs no import duty.

    Learn more about watch tariffs

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    This page was last updated: July 5, 2026 at 7 am

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