This timepiece is a magnificent mechanical artifact from December 1974 as confirmed by the serial number 4D1722 .The 5 Actus line was tailored specifically for the young, style-conscious Japanese professional of the 1970s, prioritizing vibrant styling and robust automatic movements. It houses the dependable Caliber 7019, a technical soul boasting 21 jewels and a Daini Seikosha heritage. This movement is famous for its unique quickset mechanism where pushing the crown inward changes the day of the week.
The architecture is outstanding, featuring a robust stainless steel cushion case with a recessed crown at 4 o'clock that highlights its purely automatic nature. The watch stands out due to its spectacular 9-facet glass crystal, an avant-garde design element shared with Seiko's premium Advan line. This geometric prism creates a cross-like reflection over an incredible olive-gold gradient dial, which is adorned with chunky, three-dimensional block indices and a bilingual English/Kanji day-date window. Paired with a stitched brown leather strap, this Japanese Domestic Market (JDM) export-grade vintage timepiece is a masterclass in mid-70s Japanese retro design.
