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2. Astron (wristwatch) - Wikipedia

   en.wikipedia.org/wiki/Astron_(wristwatch)

   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.

3. Seiko - Wikipedia

   en.wikipedia.org/wiki/Seiko

   In 2006, Seiko launched the world's first wristwatch based on microcapsule E-ink technology. This watch was the first Seiko watch to win an award at the Grand Prix de Genève for its innovative ability to bend the display part, in addition to providing more contrast and a wider viewing angle than conventional LCD displays. [5] [23]

4. Seikosha - Wikipedia

   en.wikipedia.org/wiki/Seikosha

   Seiko Quartz Astron 35SQ, the world's first commercial quartz watch developed by Suwa Seikosha. 1881 — Kintarō Hattori opens the watch and jewelry shop "K. Hattori" (Hattori Tokeiten in Japanese; currently named Seiko Holdings Corporation) in the Ginza area of Tokyo, Japan.

5. Quartz crisis - Wikipedia

   en.wikipedia.org/wiki/Quartz_crisis

   Quartz movement of the Seiko Astron, 1969. The quartz crisis (Swiss) or quartz revolution (America, 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.

6. History of watches - Wikipedia

   en.wikipedia.org/wiki/History_of_watches

   Quartz Movement of the Seiko Astron (1969) The first quartz watch to enter production was the Seiko 35 SQ Astron, which hit the shelves on 25 December 1969, which was the world's most accurate wristwatch to date. [43]

7. List of watch manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_watch_manufacturers

   Samsung Galaxy Watch; Sandoz watches; Schwarz Etienne; Sea-Gull; Sector; Seiko; Seiko Epson; Seiko Instruments; Seikosha; Sekonda; Shinola Detroit; Sinn; SSIH ...