This serviced 1964 Seiko Seikomatic Weekdater Ref. J13080 stands as a premier flagship from Seiko’s early automatic era, renowned for introducing high-jewel counts and refined complications before the Grand and King Seiko lines gained dominance. Driven by the elite 33-jewel Seikosha automatic movement, it offers exceptional mechanical engineering and smooth performance. Fully serviced, it winds, sets, and runs reliably for everyday use.
The original silver sunburst dial remains in remarkably clean condition, showcasing the distinct Weekdater layout: a framed date aperture at 3 o'clock paired with the iconic full day-of-the-week window arched above 6 o'clock. Sharp faceted bar indices and classic dauphine hands complete the crisp mid-century dress profile.
The 37mm stainless steel case preserves strong vintage geometry with a flush-recessed crown at 4 o'clock, maintaining the clean right-side silhouette that defines the classic Seikomatic design language. Fitted with its original crown and paired with a rich leather strap, every element highlights its original 1964 Japanese provenance.
A highly sought-after 33-jewel reference in fully serviced, original condition—combining high-grade historical importance, iconic dial architecture, and timeless dress appeal for serious collectors of vintage Japanese horology.
