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A tribute to a watchmaking revolution. The 50th anniversary of the Quartz Astron is celebrated in a limited edition GPS Solar watch. | Seiko Watch Corporation
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The 1969 Quartz Astron 50th Anniversary Limited Edition | Astron | Seiko Watch Corporation
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Seiko Astron: World's First Quartz Watch Turns 40 | aBlogtoWatch
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How many Astron were really produced?
The 1969 Quartz Astron 50th Anniversary Limited Edition | Astron | Seiko Watch Corporation
Introducing: The 1969 Quartz Astron 50th Anniversary Limited Edition - HODINKEE
