This serviced 1975 Seiko 5 Actus SS Ref. 6106-8670 represents mid-1970s Japanese horology, embodying the dynamic design language and mechanical innovation of Seiko's iconic JDM Actus lineup. It is powered by the respected 23-jewel Caliber 6106 automatic movement from Suwa Seikosha, featuring Diashock shock protection, a hacking "Second Setting" mechanism, and an intuitive push-crown quickset day/date system. Following a full mechanical service, it operates with supreme precision, optimal efficiency, and flawless performance.
The hallmark of this timepiece is its factory-original gradient emerald green sunburst dial, transitioning gracefully from a vibrant jade center to deep forest green tones at the perimeter. The layout is appointed with an applied silver SEIKO logo, the applied "5 Actus" shield emblem, crisp "SS" typography with the Suwa factory insignia, faceted block indices with sleek contrast accents and a prominent double index at 12 o'clock, razor-sharp hands, and a framed bilingual English/Kanji day-date window at 3 o'clock.
The 37mm stainless steel cushion case preserves its sharp factory geometry, brushed upper surfaces, and polished flanks that sit comfortably and commandingly on the wrist. True to signature Actus architecture, it features a flush-recessed crown at 4 o'clock. The watch head remains 100% authentic and unaltered, retaining its original factory dial, hands, crystal, case, and crown. It comes paired with a premium tan leather strap.
An exceptionally desirable 1975 Seiko 5 Actus SS reference combining robust 23-jewel hacking automatic horology, an untouched gradient emerald green sunburst dial, iconic recessed-crown styling, and bold cushion case architecture.
