{"id":204158,"date":"2026-01-05T12:11:00","date_gmt":"2026-01-05T11:11:00","guid":{"rendered":"https:\/\/www.parisselectbook.com\/2026\/01\/05\/seiko-astron-35sq-japans-first-quartz-watch-revolutionized-watchmaking-in-1969\/"},"modified":"2026-01-05T12:11:00","modified_gmt":"2026-01-05T11:11:00","slug":"seiko-astron-35sq-japans-first-quartz-watch-revolutionized-watchmaking-in-1969","status":"publish","type":"post","link":"https:\/\/www.parisselectbook.com\/en\/2026\/01\/05\/seiko-astron-35sq-japans-first-quartz-watch-revolutionized-watchmaking-in-1969\/","title":{"rendered":"Seiko Astron 35SQ: Japan&#8217;s first quartz watch revolutionized watchmaking in 1969"},"content":{"rendered":"<p>It changed the way we tell time and think about precision. Behind this shock, one name comes up again and again: Astron, the <a href=\"https:\/\/www.parisselectbook.com\/en\/2026\/01\/04\/casio-g-shock-mtg-b4000d-with-high-end-metal-bracelet-due-in-january\/\">quartz watch<\/a> born in Japan in the late 1960s. Here&#8217;s how one patiently matured idea shifted the boundaries of an entire industry.  <\/p>\n<h2>1969, the day everything changed<\/h2>\n<p>On <strong>December 25, 1969<\/strong>, Seiko unveiled the Astron 35SQ, the result of years of research at Suwa. The challenge was simple, yet immense: miniaturize the <strong>8,192 Hz quartz<\/strong> oscillator, create a stepper motor, and guarantee unprecedented precision <a href=\"https:\/\/www.parisselectbook.com\/en\/2026\/01\/04\/pequignet-concorde-nacre-30-mm-the-french-luxury-watch-for-connoisseurs\/\">on the wrist<\/a>. <\/p>\n<p>Compared to <a href=\"https:\/\/www.parisselectbook.com\/en\/2026\/01\/03\/rolex-raises-its-us-prices-on-january-1-2026\/\">mechanical watches<\/a>, the gain is tangible, almost destabilizing. The drift is counted in a few seconds per month, whereas the best mechanical watches aim for the minute over several days; this changes the situation for the user, but also for the workshops. <\/p>\n<p>Seiko &#8211; Astron 35SQ. With an <strong>18-carat yellow gold<\/strong> case and a launch price of <strong>450,000 yen<\/strong>, a sum close to the price of a <a href=\"https:\/\/www.parisselectbook.com\/en\/2026\/01\/04\/motorcycles-compulsory-roadworthiness-tests-in-france-from-2026-here-are-the-models-concerned\/\">new car<\/a> in Japan, the object is more a technological manifesto than a mass-market product. As such, the series is a milestone, ushering in an era in which electronics, soberly integrated, guide the watchmaker&#8217;s hand.  <\/p>\n<blockquote><p>&#8220;Precision was no longer a horizon: it became a measurable, available and portable standard.&#8221;<\/p><\/blockquote>\n<h3>Before Astron: battery testing<\/h3>\n<p>Suwa Seikosha &#8211; 31EL. A battery-powered wristwatch with <strong>anchor escapement<\/strong>, it bridges the gap between mechanics and electronics; the heart still beats to the rhythm of a classic regulating organ. However, the presence of a battery prepares the watch for future leaps, by isolating the energy of the gesture.  <\/p>\n<p>Seiko &#8211; 35 A (quartz movement). This caliber drives the company&#8217;s first prototypes, with a stable oscillator and a bench-tested stepper motor. From then on, the way became clear: miniaturize, make reliable, then industrialize without losing precision.  <\/p>\n<ul>\n<li><strong>1969<\/strong>: Seiko introduces the Astron 35SQ, the world&#8217;s first quartz series.<\/li>\n<li><strong>\u00b15 s\/month<\/strong>: the precision targeted by the first Astron calibres.<\/li>\n<li><strong>450,000 yen<\/strong>: introductory price, exceptional positioning.<\/li>\n<li>Two Seiko poles: Suwa and Daini, the driving forces behind fine-tuning.<\/li>\n<li>From prototypes to series: 35 A movement, then calendar variants.<\/li>\n<\/ul>\n<h2>Two poles, one methodical revolution<\/h2>\n<p>Suwa &#8211; 35SQ. The first industrial launch pad, this milestone confirms the feasibility of regular high-precision production. The team fine-tunes machining, thermal insulation and circuit assembly.  <\/p>\n<p>Daini &#8211; 36SQ. Seiko&#8217;s other division advanced in parallel, consolidating its technical choices; internal competition stimulated solutions. As a result, standardization accelerates and costs eventually fall.  <\/p>\n<p>Suwa &#8211; 38SQ. This generation pushes reliability to the limit, with meticulous work on power consumption and oscillator stability. As a result, maintenance is reduced and users benefit from long-lasting precision.  <\/p>\n<p>The international market felt the shockwave, later dubbed the &#8220;quartz crisis&#8221;. In shop windows, quartz watches gained in visibility, while workshops reviewed their priorities; precision became a non-negotiable asset. <\/p>\n<h3>Useful functions, wider distribution<\/h3>\n<p>Seiko &#8211; 35SQC. The addition of the calendar meets the needs of everyday use, without sacrificing energy reserves or controlled thickness. As a result, production is now open to larger volumes, with strict quality control.  <\/p>\n<p>Seiko &#8211; 03SQ. The first dedicated to women&#8217;s wrists, it condenses innovation into a small, elegant format. In short, technology adapts to lifestyles beyond the masculine codes of the moment.  <\/p>\n<p>As the public embraced these new products, watch ranges expanded and became more segmented. The quartz watch became a promise of time serenity, with no need for frequent revisions or complex adjustments. In-store education also takes hold, with easy-to-understand figures and tests.  <\/p>\n<h2>From historical icon to solar GPS<\/h2>\n<p>Seiko &#8211; SBXD002. The &#8220;Quartz Astron 1969 Limited Edition 50 Years&#8221; pays tribute to the pioneer with a precious case and a <strong>GPS Solar<\/strong> module, priced at <strong>\u20ac38,000<\/strong>. The object combines heritage and space technology, synchronizing time with satellites.  <\/p>\n<p>Seiko &#8211; 5X53. A <strong>Dual-Time<\/strong> solar GPS caliber, it adjusts the time zone almost instantaneously and memorizes reference cities. As a result, travelers gain greater autonomy, without having to rely on a terrestrial network.  <\/p>\n<p>The name Astron no longer refers only to 1969. From now on, it represents the continuity of a powerful idea: using the quartz oscillator as a stable base, then grafting onto it functions connected to the environment. In this way, the quartz watch becomes part of an ecosystem in which legal time is updated everywhere.  <\/p>\n<p>This trajectory reassures collectors and pragmatic users alike. On the one hand, history offers clear, dated and documented benchmarks; on the other, today&#8217;s technology provides everyday practicality. As a result, a well-designed quartz watch remains a credible, durable and precise choice.  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>It changed the way we tell time and think about precision. Behind this shock, one name comes up again and again: Astron, the quartz watch&#8230;<\/p>\n","protected":false},"author":13,"featured_media":204041,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2685],"tags":[5151],"quartier":[],"class_list":["post-204158","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-du-luxe-en","tag-quartz-watch"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Seiko Astron 35SQ: Japan&#039;s first quartz watch revolutionized watchmaking in 1969<\/title>\n<meta name=\"description\" content=\"1969 in Japan, the Astron 35SQ quartz watch set a new standard for precision. 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