The Story of 1969 Quartz Astron and GPS solar Astron | Seiko Astron | Seiko Watch Corp.
How the launch of the Seiko Astron - the world's first commercial quartz - rocked the watch world 50 years ago
The Seiko Guy | First quartz watches in history, the Quart-Astron 35SQ with 18k solid gold case, and the 36SQC with stainless steel case and bracelet. Th... | Instagram