Quartz-Astron 35SQ (35-9000), the world's first quartz wristwatch introduced in December of 1969. #seiko #quartzastron #seikoastron #35s... | Instagram
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
![How the launch of the Seiko Astron - the world's first commercial quartz - rocked the watch world 50 years ago How the launch of the Seiko Astron - the world's first commercial quartz - rocked the watch world 50 years ago](https://www.telegraph.co.uk/content/dam/luxury/2019/04/01/QzAstron_trans_NvBQzQNjv4BqfB-9o7Jl_5dxeDkgnjyCr0Q7EiYC2LyY4IabJiAvK-c.jpg?imwidth=480)