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At the time, Suwa Seikosha Co. was in charge of manufacturing men's watches, so it was decided that Suwa would produce the first Grand Seiko. The first Grand Seiko, released in 1960, was based on Seiko's previous high-end watch, CROWN. This Grand Seiko has a 25-jewel, manual-winding, 3180 caliber, and its production was limited to 36,000 units ...
Quartz movement of the Seiko Astron, 1969. The quartz crisis (Swiss) or quartz revolution (American, Japan and other countries) was the advancement in the watchmaking industry caused by the advent of quartz watches in the 1970s and early 1980s, that largely replaced mechanical watches around the world. [1] [2] It caused a significant decline of ...
Analogue. Introduced. December 25, 1969. Quartz Movement of the Seiko Astron, 1969 (Deutsches Uhrenmuseum, Inv. Inv. 2010-006) The Astron wristwatch, formally known as the Seiko Quartz-Astron 35SQ, was the world's first "quartz clock" wristwatch. It is now registered on the List of IEEE Milestones as a key advance in electrical engineering .
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Samsung Galaxy Watch; Sandoz watches; Schwarz Etienne; Sea-Gull; Sector; Seiko; Seiko Epson; Seiko Instruments; Seikosha; Sekonda; Shinola Detroit; Sinn; SSIH ...
In 1999, the first production models were made available in Japan as limited edition, manual-wind watches in both the Credor and Seiko brands. The first non-limited model was released in Japan in 2002. The 1st spring drive automatic-wind movement of Grand Seiko was released in September 2004, the reference number is SBGA001.
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