{"id":57009,"date":"2025-04-01T08:30:00","date_gmt":"2025-04-01T06:30:00","guid":{"rendered":"https:\/\/www.horbiter.com\/?p=57009"},"modified":"2025-04-18T08:27:49","modified_gmt":"2025-04-18T06:27:49","slug":"how-the-grand-seiko-spring-drive-ufa-set-new-standards","status":"publish","type":"post","link":"https:\/\/www.horbiter.com\/en\/how-the-grand-seiko-spring-drive-ufa-set-new-standards\/","title":{"rendered":"How the Grand Seiko Spring Drive U.F.A. set new standards"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"intro\">Intro<\/h2>\n\n\n\n<p>Pursuing perfection and the ultimate accuracy is an obsession at Grand Seiko, and the Evolution 9, which epitomizes the brand\u2019s present and future, is the chosen\u00a0platform to introduce the most relevant technical innovations, including GS-proprietary\u00a0<strong>Ever Brilliant Steel<\/strong>\u00a0and new calibres.<\/p>\n\n\n\n<p>Grand Seiko keeps evolving at a pace no other brand can compete against, making it a unicorn among premium luxury watch\u00a0brands for its\u00a0unique and brilliant approach to watchmaking. The acronym U.F.A.,\u00a0<em>\u201cUltra Fine Adjusted\u201d<\/em>, sets a\u00a0<strong>new benchmark in timing accuracy<\/strong>, fostering it to new heights.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"an-evolution-9-achieving-an-unbelievable-20-seconds-accuracy-per-year\">An Evolution 9 achieving an unbelievable +\/- 20 seconds accuracy per year<\/h2>\n\n\n\n<p>Yes, the new Grand Seiko Evolution 9 SLGB001 and SLGB003, in platinum and titanium, respectively, push accuracy to levels\u00a0<strong>never achieved before<\/strong>\u00a0on a Spring-Drive Grand Seiko. Engineers reached what was thought impossible by improving the\u00a0<em>\u201cglide wheel\u201d<\/em>\u00a0driving mechanism.<\/p>\n\n\n\n<p>With the V.F.A., or\u00a0<em>\u201cVery Fine Adjusted\u201d<\/em>\u00a0mechanical models introduced a few years ago, Grand Seiko proved their\u00a0quest for accuracy is unstoppable.\u00a0Still, the Spring Drive technology allows engineers\u00a0<strong>to raise the bar<\/strong>\u00a0much higher.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-does-spring-drive-work\">How does Spring Drive work?<\/h2>\n\n\n\n<p>Before analyzing what they improved, it is worth discussing what lies behind the hood and what makes the magic happen. Spring Drive is\u00a0<em>\u201ca mechanical watch with the accuracy of a quartz watch\u201d<\/em>, as the brand claims. The stored energy released by the barrel powers a\u00a0<strong>regulating system<\/strong>\u00a0comprising an electromagnetic generator, an IC (integrated circuit) and a quartz oscillator.<\/p>\n\n\n\n<p>It directly powers a glide wheel, whose energy then powers a quartz oscillator and the matching IC via electromagnetic induction. The integrated circuit controls the speed of the glide wheel (via an electromagnetic brake) by continuously comparing the rotation speed with the accuracy of the signals\u00a0<strong>triggered by the oscillator<\/strong>. The glide wheel, whose speed is finely regulated, is connected via a gear train to hours, minutes and seconds hands.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"900\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-due.jpg\" alt=\"grand seiko evolution 9 spring drive ufa SLGB003 due\" class=\"wp-image-56988\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-due.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-due-200x300.jpg 200w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-due-80x120.jpg 80w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<p>Engineers didn\u2019t change\u00a0the base technical\u00a0layout; instead, they worked on the oscillator and the IC. In brief, they improved the\u00a0<strong>oscillator manufacturing process<\/strong>\u00a0and built a new integrated circuit, hence Spring Drive\u2019s brain. Also, they\u00a0equipped\u00a0the new 9RB2 movement with a\u00a0<strong>first-ever adjustment switch<\/strong>\u00a0to allow after-sales technicians to fine-tune the watch\u2019s accuracy when needed.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"900\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-cinque.jpg\" alt=\"grand seiko evolution 9 spring drive ufa SLGB003 cinque\" class=\"wp-image-56986\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-cinque.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-cinque-200x300.jpg 200w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-cinque-80x120.jpg 80w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<p>Not only is the new calibre more technically advanced than its forerunners, but it is also very compact. A Spring Drive U.F.A. measures\u00a0<strong>37 mm across and 11.4 mm<\/strong>\u00a0in thickness. Form meets function since the watch is sleeker than ever before. The icing on the cake is a first-ever micro-adjustment on the bracelet via its clasp.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"900\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-due.jpg\" alt=\"Grand Seiko Spring Drive U.F.A. due\" class=\"wp-image-57530\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-due.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-due-200x300.jpg 200w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-due-80x120.jpg 80w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\n<p>Thus, Grand Seiko has improved what watch aficionados\u00a0<strong>have long asked<\/strong>\u00a0the brand to do.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"two-options-at-launch-high-intensity-titanium-and-950-platinum\">Two options at launch: high-intensity titanium and 950 platinum<\/h2>\n\n\n\n<p>Grand Seiko has revealed two models. The first is a titanium variant whose reference is SLGB003. It is priced at 12,000 Euros, on par with such a<strong>\u00a0high-value proposition<\/strong>. Next is reference SLGB001 in 950 platinum on a crocodile strap and a production limited to 80 pieces, each priced at 42,000 Euros. It is more expensive than expected, even considering the top-notch quality and prestige.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-due.jpg\" data-pswp-width=\"600\" data-pswp-height=\"900\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"900\" data-id=\"57530\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-due.jpg\" alt=\"Grand Seiko Spring Drive U.F.A. due\" class=\"wp-image-57530\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-due.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-due-200x300.jpg 200w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-due-80x120.jpg 80w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top.jpg\" data-pswp-width=\"1300\" data-pswp-height=\"867\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" data-id=\"57527\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top-1024x683.jpg\" alt=\"Grand Seiko Spring Drive U.F.A. top\" class=\"wp-image-57527\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top-1024x683.jpg 1024w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top-300x200.jpg 300w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top-768x512.jpg 768w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top-120x80.jpg 120w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top-480x320.jpg 480w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top-600x400.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top-1280x853.jpg 1280w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/Grand-Seiko-Spring-Drive-U.F.A.-top.jpg 1300w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003.jpg\" data-pswp-width=\"600\" data-pswp-height=\"900\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"900\" data-id=\"56999\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003.jpg\" alt=\"grand seiko evolution 9 spring drive ufa SLGB003\" class=\"wp-image-56999\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-200x300.jpg 200w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-80x120.jpg 80w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-tre.jpg\" data-pswp-width=\"600\" data-pswp-height=\"900\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"900\" data-id=\"56995\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-tre.jpg\" alt=\"grand seiko evolution 9 spring drive ufa SLGB003 tre\" class=\"wp-image-56995\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-tre.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-tre-200x300.jpg 200w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-tre-80x120.jpg 80w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-quattro.jpg\" data-pswp-width=\"600\" data-pswp-height=\"900\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"900\" data-id=\"56991\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-quattro.jpg\" alt=\"grand seiko evolution 9 spring drive ufa SLGB003 quattro\" class=\"wp-image-56991\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-quattro.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-quattro-200x300.jpg 200w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-quattro-80x120.jpg 80w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-due.jpg\" data-pswp-width=\"600\" data-pswp-height=\"900\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"900\" data-id=\"56989\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-due.jpg\" alt=\"grand seiko evolution 9 spring drive ufa SLGB003 due\" class=\"wp-image-56989\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-due.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-due-200x300.jpg 200w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-due-80x120.jpg 80w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-cinque.jpg\" data-pswp-width=\"600\" data-pswp-height=\"900\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"900\" data-id=\"56987\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-cinque.jpg\" alt=\"grand seiko evolution 9 spring drive ufa SLGB003 cinque\" class=\"wp-image-56987\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-cinque.jpg 600w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-cinque-200x300.jpg 200w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-evolution-9-spring-drive-ufa-SLGB003-cinque-80x120.jpg 80w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-Evolution-9-spring-drive-ufa-slgb003-due-1.jpg\" data-pswp-width=\"900\" data-pswp-height=\"675\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"675\" data-id=\"57004\" src=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-Evolution-9-spring-drive-ufa-slgb003-due-1.jpg\" alt=\"grand seiko Evolution 9 spring drive ufa slgb003 due\" class=\"wp-image-57004\" srcset=\"https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-Evolution-9-spring-drive-ufa-slgb003-due-1.jpg 900w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-Evolution-9-spring-drive-ufa-slgb003-due-1-300x225.jpg 300w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-Evolution-9-spring-drive-ufa-slgb003-due-1-768x576.jpg 768w, https:\/\/www.horbiter.com\/wp-content\/uploads\/2025\/04\/grand-seiko-Evolution-9-spring-drive-ufa-slgb003-due-1-120x90.jpg 120w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/figure>\n<\/figure>\n\n\n\n<p>(Photo credit: Peter Tung)<\/p>\n\n\n\n<p class=\"has-text-align-right\">Giovanni Maria Di Biase @Horbiter\u00ae<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Intro Pursuing perfection and the ultimate accuracy is an obsession at Grand Seiko, and the Evolution 9, which epitomizes the brand\u2019s present and future, is the chosen\u00a0platform to introduce the most relevant technical innovations, including GS-proprietary\u00a0Ever Brilliant Steel\u00a0and new calibres. Grand Seiko keeps evolving at a pace no other brand can compete against, making it [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.horbiter.com\/en\/how-the-grand-seiko-spring-drive-ufa-set-new-standards\/\">Read More&#8230;<span class=\"screen-reader-text\"> from How the Grand Seiko Spring Drive U.F.A. set new standards<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":57527,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[519,598],"tags":[],"class_list":["post-57009","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-grand-seiko","category-watches-and-wonders"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How the Grand Seiko Spring Drive U.F.A. set new standards - Horbiter \u00e8 il magazine italiano sugli orologi di lusso. Novit\u00e0, recensioni, informazioni dal mondo degli orologi. Scoprilo subito.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.horbiter.com\/en\/how-the-grand-seiko-spring-drive-ufa-set-new-standards\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How the Grand Seiko Spring Drive U.F.A. set new standards - Horbiter \u00e8 il magazine italiano sugli orologi di lusso. Novit\u00e0, recensioni, informazioni dal mondo degli orologi. 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