{"product_id":"grand-seiko-slgh017g-night-birch-hi-beat","title":"Evolution 9 'Night Birch' Hi-Beat","description":"\u003ch3 data-section-id=\"j4sip1\" data-start=\"76\" data-end=\"127\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe Beauty of the White Birch Forest After Dark\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"129\" data-end=\"585\"\u003eThe Grand Seiko Evolution 9 Collection SLGH017G, affectionately known by enthusiasts as the \"Night Birch\", captures the quiet atmosphere of the white birch forests surrounding the Grand Seiko Studio Shizukuishi after sunset. Building on the success of the celebrated White Birch SLGH005, this striking interpretation presents the same deeply textured dial in rich black tones, recreating the interplay of moonlight and shadow beneath the forest canopy.\u003c\/p\u003e\n\u003cp data-start=\"587\" data-end=\"853\"\u003ePowered by Grand Seiko's revolutionary Hi-Beat Calibre 9SA5 and housed within a lightweight High-Intensity Titanium case, the SLGH017G represents the perfect union of cutting-edge mechanical innovation and Japanese artistry. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"14xpz3j\" data-start=\"855\" data-end=\"890\"\u003eEvolution 9 Design at Its Finest\u003c\/h2\u003e\n\u003cp data-start=\"892\" data-end=\"1142\"\u003eThe SLGH017G belongs to Grand Seiko's acclaimed Evolution 9 Collection, a design philosophy that refines the iconic 44GS principles for modern wearability. Every surface has been carefully engineered to improve aesthetics, comfort and legibility.\u003c\/p\u003e\n\u003cp data-start=\"1144\" data-end=\"1589\"\u003eThe black birch-pattern dial is created through an intricate multi-stage pressing process, producing remarkable depth and texture that shifts dramatically as the light changes. Powerful faceted hands and deeply grooved indexes ensure exceptional readability, while Grand Seiko's renowned Zaratsu polishing creates distortion-free mirror finishes that contrast beautifully against delicate hairline brushing. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"13vmmfq\" data-start=\"1591\" data-end=\"1628\"\u003eRevolutionary Hi-Beat Calibre 9SA5\u003c\/h2\u003e\n\u003cp data-start=\"1630\" data-end=\"1773\"\u003eAt the heart of the SLGH017G beats the Grand Seiko Calibre 9SA5, one of the most advanced mechanical movements ever developed by the brand.\u003c\/p\u003e\n\u003cp data-start=\"1775\" data-end=\"1847\"\u003eThe movement incorporates several groundbreaking innovations, including:\u003c\/p\u003e\n\u003cul data-start=\"1849\" data-end=\"2201\"\u003e\n\u003cli data-section-id=\"4wcggo\" data-start=\"1849\" data-end=\"1884\"\u003eApprox. 80-hour power reserve\u003c\/li\u003e\n\u003cli data-section-id=\"kkxycy\" data-start=\"1885\" data-end=\"1960\"\u003eHi-Beat frequency of 36,000 vibrations per hour (10 beats per second)\u003c\/li\u003e\n\u003cli data-section-id=\"u8ncop\" data-start=\"1961\" data-end=\"1998\"\u003eGrand Seiko Dual Impulse Escapement\u003c\/li\u003e\n\u003cli data-section-id=\"1xdmhha\" data-start=\"1999\" data-end=\"2025\"\u003eTwin-barrel architecture\u003c\/li\u003e\n\u003cli data-section-id=\"1o82i56\" data-start=\"2026\" data-end=\"2047\"\u003eFree-sprung balance\u003c\/li\u003e\n\u003cli data-section-id=\"1mdxar4\" data-start=\"2048\" data-end=\"2078\"\u003eAutomatic and manual winding\u003c\/li\u003e\n\u003cli data-section-id=\"1vj6t46\" data-start=\"2079\" data-end=\"2142\"\u003eGrand Seiko adjusted accuracy of +5 to -3 seconds per day\u003c\/li\u003e\n\u003cli data-section-id=\"azqmsr\" data-start=\"2143\" data-end=\"2201\"\u003eTypical wearing accuracy of +8 to -1 seconds per day\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2203\" data-end=\"2423\"\u003eThese technical advances improve efficiency, stability and precision while allowing the movement to achieve one of the longest power reserves available in a Hi-Beat mechanical watch. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1w5o08q\" data-start=\"2425\" data-end=\"2462\"\u003eCrafted in High-Intensity Titanium\u003c\/h2\u003e\n\u003cp data-start=\"2464\" data-end=\"2652\"\u003eThe 40mm case and bracelet are crafted from High-Intensity Titanium, a material significantly lighter than stainless steel while offering exceptional strength and corrosion resistance.\u003c\/p\u003e\n\u003cp data-start=\"2654\" data-end=\"2944\"\u003eThe Evolution 9 case has been designed with a lower centre of gravity, allowing the watch to sit securely and comfortably on the wrist throughout the day. A box-shaped sapphire crystal with anti-reflective coating enhances the vintage-inspired profile while ensuring excellent dial clarity.\u003c\/p\u003e\n\u003cp data-start=\"2946\" data-end=\"3183\"\u003eWith 100 metres of water resistance, a screw-down crown and an exhibition sapphire case back, the SLGH017G is designed to be enjoyed every day while showcasing the remarkable Calibre 9SA5 within. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"4syo9f\" data-start=\"3185\" data-end=\"3219\"\u003eA Contemporary Grand Seiko Icon\u003c\/h2\u003e\n\u003cp data-start=\"3221\" data-end=\"3471\"\u003eThe Night Birch has quickly become one of Grand Seiko's most admired modern references. Its dramatic dial, lightweight titanium construction and revolutionary movement combine to create a watch that is technically impressive yet visually understated.\u003c\/p\u003e\n\u003cp data-start=\"3473\" data-end=\"3636\"\u003eFor collectors seeking a distinctive Grand Seiko that perfectly embodies the brand's philosophy of \u003cstrong data-start=\"3572\" data-end=\"3596\"\u003e\"The Nature of Time\"\u003c\/strong\u003e, the SLGH017G is an exceptional choice.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"3638\" data-end=\"3653\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"3655\" data-end=\"4424\"\u003e\n\u003cli data-section-id=\"8qtho8\" data-start=\"3655\" data-end=\"3676\"\u003eReference: SLGH017G\u003c\/li\u003e\n\u003cli data-section-id=\"1gvxwgn\" data-start=\"3677\" data-end=\"3725\"\u003eCollection: Grand Seiko Evolution 9 Collection\u003c\/li\u003e\n\u003cli data-section-id=\"1vglvvl\" data-start=\"3726\" data-end=\"3752\"\u003eGrand Seiko Calibre 9SA5\u003c\/li\u003e\n\u003cli data-section-id=\"1ru901d\" data-start=\"3753\" data-end=\"3788\"\u003eHi-Beat 36,000 automatic movement\u003c\/li\u003e\n\u003cli data-section-id=\"1mdxar4\" data-start=\"3789\" data-end=\"3819\"\u003eAutomatic and manual winding\u003c\/li\u003e\n\u003cli data-section-id=\"1nba860\" data-start=\"3820\" data-end=\"3851\"\u003eApprox. 80-hour power reserve\u003c\/li\u003e\n\u003cli data-section-id=\"u8ncop\" data-start=\"3852\" data-end=\"3889\"\u003eGrand Seiko Dual Impulse Escapement\u003c\/li\u003e\n\u003cli data-section-id=\"hgnc2e\" data-start=\"3890\" data-end=\"3916\"\u003eTwin-barrel construction\u003c\/li\u003e\n\u003cli data-section-id=\"1o82i56\" data-start=\"3917\" data-end=\"3938\"\u003eFree-sprung balance\u003c\/li\u003e\n\u003cli data-section-id=\"y1x0h\" data-start=\"3939\" data-end=\"3993\"\u003eGrand Seiko adjusted accuracy: +5\/-3 seconds per day\u003c\/li\u003e\n\u003cli data-section-id=\"1mezj7n\" data-start=\"3994\" data-end=\"4029\"\u003e40mm High-Intensity Titanium case\u003c\/li\u003e\n\u003cli data-section-id=\"64vcze\" data-start=\"4030\" data-end=\"4065\"\u003eBlack \"Night Birch\" textured dial\u003c\/li\u003e\n\u003cli data-section-id=\"ntcj7k\" data-start=\"4066\" data-end=\"4093\"\u003eDate display at 3 o'clock\u003c\/li\u003e\n\u003cli data-section-id=\"1m954pp\" data-start=\"4094\" data-end=\"4123\"\u003eBox-shaped sapphire crystal\u003c\/li\u003e\n\u003cli data-section-id=\"ukxftd\" data-start=\"4124\" data-end=\"4166\"\u003eAnti-reflective coating on inner surface\u003c\/li\u003e\n\u003cli data-section-id=\"1arxbko\" data-start=\"4167\" data-end=\"4198\"\u003eExhibition sapphire case back\u003c\/li\u003e\n\u003cli data-section-id=\"6qv7r4\" data-start=\"4199\" data-end=\"4217\"\u003eScrew-down crown\u003c\/li\u003e\n\u003cli data-section-id=\"px9k8p\" data-start=\"4218\" data-end=\"4252\"\u003eHigh-Intensity Titanium bracelet\u003c\/li\u003e\n\u003cli data-section-id=\"b85ljd\" data-start=\"4253\" data-end=\"4296\"\u003eThree-fold clasp with push-button release\u003c\/li\u003e\n\u003cli data-section-id=\"110j6kv\" data-start=\"4297\" data-end=\"4337\"\u003eWater resistant to 100 metres (10 bar)\u003c\/li\u003e\n\u003cli data-section-id=\"1s7fdrg\" data-start=\"4338\" data-end=\"4370\"\u003eMagnetic resistance: 4,800 A\/m\u003c\/li\u003e\n\u003cli data-section-id=\"rd6zor\" data-start=\"4371\" data-end=\"4424\"\u003eMade in Japan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Grand Seiko","offers":[{"title":"Default Title","offer_id":42986560323735,"sku":"SLGH017","price":6720.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/0643\/4455\/files\/SLGH017G.png?v=1727097332","url":"https:\/\/www.deacons-jewellers.com\/products\/grand-seiko-slgh017g-night-birch-hi-beat","provider":"Deacon \u0026 Son  ","version":"1.0","type":"link"}