Seiko 5 Actus SS 6106-8660 – September 1974 – Green Sunburst – 25 Jewels – JDM Vintage – revidiert GMT The cushion-shaped case with its

The cushion-shaped case with its slightly beveled surfaces is typical of the early quartz decades when Seiko dominated the world market

Grand Seiko set a milestone in the history of the quartz watch

Serial number: 89xxxx → September 1978

The faceted surfaces of the case

very clear

Seiko 5 Actus SS 6106-8660 – September 1974 – Green Sunburst – 25 Jewels – JDM Vintage – revidiert GMT The cushion-shaped case with itsThe Seiko 5 Actus represents the sportier, more modern iteration of Seiko's mechanical line from the 1970s. This particular example, reference 6106 8660, dates from September 1974 (serial number 49xxxx) and embodies the transition from classic dress aesthetics to the bolder designs of the mid 70s. Historical Context Within Seiko's product architecture, the Seiko 5 Actus was positioned as follows: technically above the classic Seiko 5 models below Lord