This timepiece is a magnificent artifact from September 1975, as confirmed by the serial number 597764 stamped on the case back. The 08-series represents Seiko's highly premium, early-generation quartz movements that were built shortly after the pioneering Astron. It houses the robust Caliber 0842, a technical soul from a transitional era when electronic movements were built to last, featuring heavy-duty metal bridges and fully serviceable parts.
The architecture is outstanding, showcasing a solid stainless steel case with polished contours that curve elegantly onto the original integrated-style multi-link bracelet. The dial is a rare treat, displaying a deep teal blue finish paired with applied polished indices, classic baton hands, and a clean date window at 3 o'clock. It proudly displays the applied single-quartz crystal crest above the 6 o'clock position—Seiko's classic badge of electronic distinction. Flipping the case over reveals a highly practical coin-slot battery hatch, allowing for effortless power cell replacements. This professional-grade daily vintage instrument was created exclusively for the Japanese Domestic Market (JDM).
