This serviced 1973 Seiko 5 Actus SS Ref. 6106-7590 represents early-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 dependable performance.
The hallmark of this timepiece is its factory-original deep charcoal-black sunburst dial viewed beneath its genuine original faceted prism crystal, creating captivating geometric light reflections across the surface. The layout is appointed with an applied silver SEIKO logo, the applied "5 Actus" shield emblem, crisp "SS 23 JEWELS" typography with the Suwa factory insignia, bold applied three-dimensional faceted block hour markers with warm contrast accents, razor-sharp hands, and a framed bilingual English/Kanji day-date window at 3 o'clock.
The 37mm stainless steel cushion-tonneau 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 timepiece remains 100% factory-correct and complete, retaining its original dial, hands, faceted crystal, case, crown, and rare factory-original stainless steel multi-link bracelet.
An exceptionally desirable 1973 Seiko 5 Actus SS reference combining robust 23-jewel hacking automatic horology, rare original faceted prism optics, an untouched deep charcoal sunburst dial, and full original bracelet integrity.
