$5.83 per wear · worn 30 times
The more you wear it, the lower it gets.
From the brand’s own pages, read October 5
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The Seiko T646 captures the refined, architectural character of 1980s Japanese eyewear design. Its oversized rectangular silhouette features softly rounded corners and a gently curved lower edge, creating a balanced profile with generous proportions. The slim dark metal construction keeps the frame visually light, while the subtle double-bridge arrangement adds structure and definition across the upper front. Frame Model: T646 Decade: 1980s Country of Origin: Japan Lenses: New pink lenses Condition: Excellent vintage Measurements: 56-18-145 Historical Context Seiko’s connection to eyewear dates back to 1921, when the optical department of Hattori Watch Shop began importing and selling eyeglass frames in Japan. The company later developed its own optical products, introducing the Vista frame brand in 1973 before launching frames under the Seiko name in 1989. Seiko’s approach to eyewear has been closely tied to Japanese precision, technical development, and optical performance, reflecting the company’s broader tradition of combining engineering with refined design. Its optical history also includes significant innovations in lens technology, including Japan’s first domestically produced progressive lens in 1980 and advanced aspheric lens developments during the 1980s and 1990s. Vintage Seiko eyewear reflects this precision-driven heritage through clean forms, functional construction, and an understated Japanese aesthetic shaped by the company’s long involvement in optical technology.