Seiko's marvelous AT era before born of LM~

The Seiko Matic-R Ref.8305-8010 is a rare and exquisite example of Seiko's evolution in watchmaking. This 35mm stainless steel gem showcases the revolutionary advancements of the Seikomatic line, featuring a higher jewel count for enhanced precision and durability. Its practical quickset date function and the reintroduction of manual winding, with the crown repositioned to 9 o’clock, offer exceptional usability and charm. With a new crystal, this Japan-made vintage timepiece is a masterpiece of mid-century innovation. A collectible treasure, it embodies Seiko’s dedication to both functionality and timeless design.

The "R" in Seikomatic-R is believed to stand for "Ruby," referring to the increased number of jewels (rubies) in the movement compared to earlier models. The Seikomatic-R series often featured movements with 30 or more jewels, which was considered a significant upgrade, offering improved durability, reduced friction, and greater precision. This designation highlighted the premium nature of these models, positioning them as high-end offerings in Seiko’s lineup during the 1960s.