{"product_id":"evolution-9-ushio-diver-slgb023g","title":"EVOLUTION 9 - USHIO DIVER SLGB023G","description":"\u003cdiv style=\"text-align: left;\" class=\"product-description-text center\"\u003e\n\u003cdiv class=\"product-description-text\"\u003e\u003cheader class=\"product-outline-header\"\u003e\n\u003cdiv class=\"product-outline-sub\"\u003e\n\u003cdiv class=\"product-outline-header\"\u003e\n\u003cdiv class=\"product-outline-sub\"\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eIn 2025, Grand Seiko unveiled the Spring Drive Caliber 9RB2, a groundbreaking movement that received the then-new U.F.A. designation, standing for “Ultra Fine Accuracy.” Boasting an annual accuracy rate of ±20 seconds, Caliber 9RB2 earned the distinction of being the most accurate wristwatch movement powered by a mainspring.* This model is powered by Caliber 9RB1, featuring an improved construction that makes it ideal for sporting conditions while sharing the same attributes as the Caliber 9RB2.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe term \u003c\/span\u003e\u003ci\u003eushio\u003c\/i\u003e\u003cspan\u003e, which means “tide” in Japanese, evokes the waters that surround the Japanese archipelago. This creation’s blue dial reflects the vast expanse of the sea through a gradient that captures light streaming into the deep ocean.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* As of April 2026, based on Grand Seiko’s research.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003e \u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003e\u003cstrong\u003eCASE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eCase Material: High-Intensity Titanium\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eCase Diameter: 40.8mm\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eCase Thickness: 12.9mm\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eCrown: Screw Down\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eStrap\/Bracelet: Three-fold clasp with secure lock \u0026amp; push button release, solid \u0026amp; slide adjuster\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eCrystal: Sapphire crystal, Anti-reflective coating on inner surface\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eCaseback: Screw case back\u003c\/p\u003e\n\u003cp tabindex=\"-1\"\u003eLumiBrite: LumiBrite on hands, index(es) and bezel\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp tabindex=\"0\"\u003e \u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003e\u003cstrong\u003eMOVEMENT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eCaliber: 9RB1\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003ePower Source: Spring Drive\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eJewels: 33\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eAccuracy: ±20 seconds per year \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e(±3 seconds per month)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eDuration: 72 hours (3 days)\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003e \u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003e\u003cstrong\u003eFUNCTIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv data-wp-id=\"1068\"\u003e\n\u003cp tabindex=\"0\"\u003eFeatures: Time, Date, Power Reserve Indicator\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eWater Resistance: 300m\u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eMagnetic Resistance: 4,800 A\/m\u003c\/p\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv data-wp-id=\"1068\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp data-wp-id=\"1068\"\u003e \u003c\/p\u003e\n\u003cp data-wp-id=\"1068\"\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eLike every Grand Seiko watch, the Ushio 300 strikes a perfect balance between function and beauty. Its legibility, durability, and wearing comfort have been thoroughly considered and painstakingly engineered to ensure uncompromising performance in any environment. Commensurate attention has been given to every aspect of the watch’s physical appearance.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe prominent indexes of the Evolution 9 Style are meticulously crafted with multiple facets. Both the hour and minute hands strike a sharply defined and powerful form, ensuring outstanding legibility at a glance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe watch showcases a blue variation of the “Ushio” dial, a design theme that has been part of the Grand Seiko diver’s watch since 2022. The term \u003ci\u003eushio\u003c\/i\u003e, which means “tide” in Japanese, evokes the waters that surround the Japanese archipelago, a timeless source of inspiration in Japan’s culture and art. Combined with a gradient design, the vivid dial color emphasizes the “Ushio” pattern while ensuring the excellent legibility for which Grand Seiko divers are renowned. The blue dial reflects the vast expanse of the sea through a gradient that captures light streaming into the deep ocean.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThanks to the movement’s compact design, this model features a case diameter of just 40.8 mm, the smallest of any Grand Seiko diver’s watch, ensuring a comfortable fit for a wide range of wrist sizes. Both the case and bracelet are crafted from High-Intensity Titanium, a material approximately 30% lighter than stainless steel and distinguished by its bright, lustrous appearance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe bracelet includes a locking extension clasp with micro-adjustment. In addition to a three-step micro-adjustment that allows for up to 6 mm of fine-tuning, the extension feature, designed to be used with a diving suit, enables an additional 18 mm, for providing a total of 24 mm of adjustment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp tabindex=\"0\"\u003eREF: SLGB023G\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/header\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Grand Seiko","offers":[{"title":"Default Title","offer_id":44417541832746,"sku":"10-20-36484","price":12400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/5686\/5316\/files\/ShopifyListings_54.png?v=1780514822","url":"https:\/\/www.manfredijewels.com\/products\/evolution-9-ushio-diver-slgb023g","provider":"Manfredi Jewels","version":"1.0","type":"link"}