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2. Seiko - Wikipedia

   en.wikipedia.org/wiki/Seiko

   Seiko 5 is a sub brand that spawned with the introduction of the Seiko Sportsmatic 5 in 1963. Since then, many models have been introduced into the lineup, comprising a variety of different styles. The name of the Seiko 5 sub brand is a reference to 5 attributes that any watch belonging to it would typically exhibit, those being:

3. Pulsar (watch) - Wikipedia

   en.wikipedia.org/wiki/Pulsar_(watch)

   Pulsar (watch) A modern analog Pulsar watch. Pulsar is a watch brand and currently a Seiko Watch Corporation of America (SCA) division. Pulsar was the world's first electronic digital watch. Current Pulsar watches are mostly analog and use the same movements in Seikos such as the 7T62 quartz chronograph movement. Pulsar quartz chronograph.

4. 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. [1][2] It caused a significant decline of ...

5. Spring Drive - Wikipedia

   en.wikipedia.org/wiki/Spring_Drive

   [1] [8] In 1999, the first production models were made available in Japan as limited edition, manual-wind watches in both the Credor and Seiko brands. [2] [5] [8] The first non-limited model was released in Japan in 2002. [5] The 1st spring drive automatic-wind movement of Grand Seiko was released in September 2004, the reference number is SBGA001.

6. Astron (wristwatch) - Wikipedia

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

   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.

7. Smartwatch - Wikipedia

   en.wikipedia.org/wiki/Smartwatch

   These models were followed by many others from Seiko during the 1980s, most notably the "RC Series". The RC-1000 Wrist Terminal from Seiko Epson was released in 1984; it was the first Seiko model to interface with a computer [6] and was priced at around £100. [8] It featured 2 KB of storage, a two-line, 12-character display, and data transfer ...