{"title":"Seiko 5421 Parts","description":"\u003ch2\u003eGenuine Seiko 5421 Parts\u003c\/h2\u003e\n\u003cp\u003eOriginal Seiko replacement parts for watches with calibre 5421.\u003c\/p\u003e\n\u003ch3\u003eFind the right part\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCheck the case number on the back of your watch and search for it in our shop.\u003c\/li\u003e\n\u003cli\u003eNot sure where to look? Read \u003ca href=\"\/pages\/how-to-find-the-model-or-case-number-of-your-watch\"\u003ehow to find the model or case number of your watch\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eEvery product page lists the case numbers and calibres the part is made for.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBrowse by part type\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/dials\"\u003eDials\u003c\/a\u003e · \u003ca href=\"\/collections\/hands\"\u003eHands\u003c\/a\u003e · \u003ca href=\"\/collections\/seiko-crystals\"\u003eCrystals\u003c\/a\u003e · \u003ca href=\"\/collections\/bezels\"\u003eBezels\u003c\/a\u003e · \u003ca href=\"\/collections\/gaskets-o-rings\"\u003eGaskets\u003c\/a\u003e · \u003ca href=\"\/collections\/movement-parts\"\u003eMovement parts\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eSee the full \u003ca href=\"\/collections\/seiko-parts\"\u003eSeiko parts catalogue\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"seiko-170n08an00-acrylic-crystal-stk079j0-5421-0110","title":"SEIKO 170N08AN00 Acrylic Crystal STK079J0 - 5421-0110","description":"\u003cp\u003eThis is the original replacement Acrylic Crystal for the SEIKO STK079J0 - 5421-0110 \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO watches is this Acrylic Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis watch Acrylic Crystal is compatible with the following \u003ca href=\"\/pages\/model-calibre-parts-list\" rel=\"noopener\" target=\"_blank\"\u003emodels\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eSTK079J0, STK079J1, STK079J8, STK079J9,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO case numbers is this Acrylic Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis Acrylic Crystal is compatible with the following \u003ca href=\"\/pages\/how-to-find-the-model-or-case-number-of-your-watch\" rel=\"noopener\" target=\"_blank\"\u003ecase numbers\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e5421-0110,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ctable style=\"width: 94.7273%;\" width=\"154\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 60.0608%;\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 39.6592%;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSEIKO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle number\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e170N08AN00\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e17,0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAcrylic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Coating Type\u003c\/td\u003e\n\u003ctd\u003eUncoated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Fitting Type\u003c\/td\u003e\n\u003ctd\u003eGasket fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003e100% genuine, brand-new watch part, directly manufactured by Seiko. These are not aftermarket or refurbished components but original factory parts, ensuring a perfect fit and the highest quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eFor the latest product FAQs, please scroll down to the bottom of this product page.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":53490255331665,"sku":"170N08AN00","price":20.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/SEIKO-GENUINE-WATCH-CRYSTAL-GLASS-OEM-ORIGINAL_9867523f-7f07-4ff1-bd19-c5ce72896168.png?v=1775836012"},{"product_id":"seiko-180n10gn00-hardlex-crystal-3421-0079","title":"SEIKO 180N10GN00 Hardlex Crystal 3421-0079","description":"\u003cp\u003eThis is the original replacement Hardlex Crystal for the SEIKO 3421-0079 \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO watches is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis watch Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/model-calibre-parts-list\" rel=\"noopener\" target=\"_blank\"\u003emodels\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e3421-0079, 2Y00-0A30, 2320-0419, 7320-0320, 7320-0180, 2320-0330, 2320-0410, 7320-0330, 7321-0210, 2320-0320, 3421-0070, 5421-0040, 1N00-0A99, 1N00-0A90,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO case numbers is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/how-to-find-the-model-or-case-number-of-your-watch\" rel=\"noopener\" target=\"_blank\"\u003ecase numbers\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e3421-0079, 2Y00-0A30, 2320-0419, 7320-0320, 7320-0180, 2320-0330, 2320-0410, 7320-0330, 7321-0210, 2320-0320, 3421-0070, 5421-0040, 1N00-0A99, 1N00-0A90,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ctable style=\"width: 94.7273%;\" width=\"154\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 60.0608%;\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 39.6592%;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSEIKO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle number\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e180N10GN00\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e18,0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHardlex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Coating Type\u003c\/td\u003e\n\u003ctd\u003eUncoated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Fitting Type\u003c\/td\u003e\n\u003ctd\u003eGasket fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003e100% genuine, brand-new watch part, directly manufactured by Seiko. These are not aftermarket or refurbished components but original factory parts, ensuring a perfect fit and the highest quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eFor the latest product FAQs, please scroll down to the bottom of this product page.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":53490278564177,"sku":"180N10GN00","price":29.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/SEIKO-GENUINE-WATCH-CRYSTAL-GLASS-OEM-ORIGINAL_acce46fc-b382-4329-b89a-af5c7651d1d5.png?v=1775836159"},{"product_id":"seiko-180p01ln03-hardlex-crystal-szn146j1-2p20-0110","title":"SEIKO 180P01LN03 Hardlex Crystal SZN146J1 - 2P20-0110","description":"\u003cp\u003eThis is the original replacement Hardlex Crystal for the SEIKO SZN146J1 - 2P20-0110 \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO watches is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis watch Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/model-calibre-parts-list\" rel=\"noopener\" target=\"_blank\"\u003emodels\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eSZN146J1, SZN144J1, SZN144J8, SZN144J9, SZN148J1, SZN148J8, SZN148J9, SZL030J1, SZL030J8, SZL030J9, SZL028J1, SZL028J8, SZL028J9, SZL032J1, SZL032J8, SZL032J9, SYG001J1, SYG001P1, SYG002J1, SYG002P1, SYG004J1, SYG004P1, SYG012P1, SYG006J1, SYG006P1, SUAG42J1, SUAG37J1, SUAG38J1, SUAG40J1, SUAG46H1, SUAG46K1, SUAG48K1, SUAG46J1, SUAG46J3, SUAG48J1, SUAG48J3, SUAG43J1, SUAG44J1, SUAG44J3, SYM749J1, SYM751J1, SYM751JC, SYM761J1, SYM753J1, SYM763J1, SYM765J1, SYM754J1, SYM756J1, SYM758J1, SYM766J1, SYMB48J1, SYMB50J1, SYMB52J1, SYMB62J1, SYMB64J1, SYMB66J1, SYMB68J1, SYMB70J1, SYMB72J1, SYMB74J1, SYMB76J1, SYMB78J1, SYMB80J1, SYMB82J1, SYM760J1, SYMB60J1, SYM767J1, SYM769J1, SYM771J1, SYM773J1, SYM774J1, SYM774JC, SYMB84J1, SYMB86J1, SYMB88J1, SYMB90J1, SYMB92J1, SYM776J1, SYMC07J2, SYMC35J1, SYMC39J1, SYMD05J1, SYMD07J1, SYMD13J1, SYMD19J1, SYMD21J1, SYMD25J1, SYMC07K1, SYMC21K1, SYMC23K1, SYMC25K1, SYMC09J2, SYMC15J2, SYMC41J1, SYMD09J1, SYMD11J1, SYMD15J1, SYMD17J1, SYMD23J1, SYMD27J1, SYMC09K1, SYMC13K1, SYMC15K1, SYMC27K1, SYMC11J1, SYMC11JC, SYMC16K1, SYMC18J2, SYMC42J1, SYMC44J1, SYMD56J1, SYMD58J1, SYMD60J1, SYMD62J1, SYMD64J1, SYMD66J1, SYMC18K1, SYMD54J1, SYMC20K1, SYMC47J1, SYMC47JC, SYMC49J1, SYMC51J1, SYMD29J1, SYMD31J1, SYMD35J1, SYMD41J1, SYMD43J1, SYMD45J1, SYMC29K1, SYMC31K1, SYMC53J1, SYMD33J1, SYMD37J1, SYMD39J1, SYMD47J1, SYMC33K1, SYMC54J1, SYMC56J1, SYMD76J1, SYMD78J1, SYMD80J1, SYMD82J1, SYMD84J1, SYMD86J1, SYMC58J1, SYMD74J1, STK048J1, STK047J1, STK050J1, SXE180J1, SXE182J1, SXE184J1, SXE334J1, SXE178J1, SXE340J1, SXE180P1, SXE180P9, SXE182P1, SXE182P9, SXE184P1, SXE184P9, SXE334P1, SXE338B, SXE338P1, SXE186P1, SXE186P9, SXE336P1, SXE178P1, SXE178P9, SXE332B, SXE332P1, SXE340B, SXE340P1, SXE188P0, SXE188P1, SXE188P9, SXE250P0, SXE250P1, SXE250P9, SXE372P0, SXE372P1, SXE372P9, SXE374P0, SXE374P1, SXE374P9, SXE248P0, SXE248P1, SXE248P9, SXE310P1, SXE310P9, SXE376P0, SXE376P1, SXE376P9, SXE412P1, SXE414P1, SXE434P1, SXE434P9, SXE626P0, SXE626P1,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO case numbers is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/how-to-find-the-model-or-case-number-of-your-watch\" rel=\"noopener\" target=\"_blank\"\u003ecase numbers\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e2P20-0110, 2P20-0200, 2P21-0010, 2P21-001A, 3Y02-0A20, 4206-0700, 4206-0710, 4207-00P0, 4207-01B0, 5421-0050, 7N82-0220, 7N82-0221, 7N82-0228, 7N82-0390, 7N82-0399, 7N82-0740, 7N83-0169, 7N83-0180, V247-0060, V247-0100, V248-0010, V248-0060, V782-0280, V827-0510, Y643-0100, Y643-0290,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ctable style=\"width: 94.7273%;\" width=\"154\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 60.0608%;\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 39.6592%;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSEIKO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle number\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e180P01LN03\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e18,0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHardlex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Coating Type\u003c\/td\u003e\n\u003ctd\u003eUncoated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Fitting Type\u003c\/td\u003e\n\u003ctd\u003ePress-fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003e100% genuine, brand-new watch part, directly manufactured by Seiko. These are not aftermarket or refurbished components but original factory parts, ensuring a perfect fit and the highest quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eFor the latest product FAQs, please scroll down to the bottom of this product page.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":53490287051089,"sku":"180P01LN03","price":29.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/SEIKO-GENUINE-WATCH-CRYSTAL-GLASS-OEM-ORIGINAL_f851bc26-249f-44c7-a014-4cef0578983b.png?v=1775836227"},{"product_id":"seiko-180w04gn00-hardlex-crystal-5421-0050","title":"SEIKO 180W04GN00 Hardlex Crystal 5421-0050","description":"\u003cp\u003eThis is the original replacement Hardlex Crystal for the SEIKO 5421-0050 \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO watches is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis watch Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/model-calibre-parts-list\" rel=\"noopener\" target=\"_blank\"\u003emodels\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e5421-0050,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO case numbers is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/how-to-find-the-model-or-case-number-of-your-watch\" rel=\"noopener\" target=\"_blank\"\u003ecase numbers\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e5421-0050,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ctable style=\"width: 94.7273%;\" width=\"154\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 60.0608%;\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 39.6592%;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSEIKO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle number\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e180W04GN00\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e18,0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHardlex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Coating Type\u003c\/td\u003e\n\u003ctd\u003eUncoated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Fitting Type\u003c\/td\u003e\n\u003ctd\u003eWaterproof gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003e100% genuine, brand-new watch part, directly manufactured by Seiko. These are not aftermarket or refurbished components but original factory parts, ensuring a perfect fit and the highest quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eFor the latest product FAQs, please scroll down to the bottom of this product page.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":53490288001361,"sku":"180W04GN00","price":29.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/SEIKO-GENUINE-WATCH-CRYSTAL-GLASS-OEM-ORIGINAL_08f0b2c1-e348-4d53-808c-250c8bd99e46.png?v=1775836235"},{"product_id":"seiko-190w12gn00-hardlex-crystal-5421-0120","title":"SEIKO 190W12GN00 Hardlex Crystal 5421-0120","description":"\u003cp\u003eThis is the original replacement Hardlex Crystal for the SEIKO 5421-0120 \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO watches is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis watch Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/model-calibre-parts-list\" rel=\"noopener\" target=\"_blank\"\u003emodels\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e5421-0120, 3421-0100, 2906-0840, 2906-0830, 2949-0140, 3421-0150, 3423-0140, 2906-0820, V301-6B40, 2906-0889, 2906-0710, 2919-0190, 2919-0040, 2906-0510, 2906-0870, 2906-0950, 2919-0290, 2906-0800, 2949-0150, 2919-0110,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO case numbers is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/how-to-find-the-model-or-case-number-of-your-watch\" rel=\"noopener\" target=\"_blank\"\u003ecase numbers\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e5421-0120, 3421-0100, 2906-0840, 2906-0830, 2949-0140, 3421-0150, 3423-0140, 2906-0820, V301-6B40, 2906-0889, 2906-0710, 2919-0190, 2919-0040, 2906-0510, 2906-0870, 2906-0950, 2919-0290, 2906-0800, 2949-0150, 2919-0110,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ctable style=\"width: 94.7273%;\" width=\"154\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 60.0608%;\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 39.6592%;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSEIKO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle number\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e190W12GN00\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e19,0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHardlex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Coating Type\u003c\/td\u003e\n\u003ctd\u003eUncoated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Fitting Type\u003c\/td\u003e\n\u003ctd\u003eWaterproof gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003e100% genuine, brand-new watch part, directly manufactured by Seiko. These are not aftermarket or refurbished components but original factory parts, ensuring a perfect fit and the highest quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eFor the latest product FAQs, please scroll down to the bottom of this product page.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":53490328142161,"sku":"190W12GN00","price":29.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/SEIKO-GENUINE-WATCH-CRYSTAL-GLASS-OEM-ORIGINAL_7df61977-5ccd-44a5-959b-49e93bb1e817.png?v=1775836488"},{"product_id":"seiko-200w16ga00-hardlex-crystal-5421-008a","title":"SEIKO 200W16GA00 Hardlex Crystal 5421-008A","description":"\u003cp\u003eThis is the original replacement Hardlex Crystal for the SEIKO 5421-008A \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO watches is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis watch Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/model-calibre-parts-list\" rel=\"noopener\" target=\"_blank\"\u003emodels\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e5421-008A, 5421-0080,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich SEIKO case numbers is this Hardlex Crystal compatible with?\u003c\/strong\u003e (\u003cem\u003esee the table below for the complete list of compatible model and case codes \/ numbers\u003c\/em\u003e)\u003c\/p\u003e\u003cp\u003eThis Hardlex Crystal is compatible with the following \u003ca href=\"\/pages\/how-to-find-the-model-or-case-number-of-your-watch\" rel=\"noopener\" target=\"_blank\"\u003ecase numbers\u003c\/a\u003e:\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e5421-008A, 5421-0080,\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ctable style=\"width: 94.7273%;\" width=\"154\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 60.0608%;\"\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 39.6592%;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSEIKO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle number\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e200W16GA00\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e20,0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHardlex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Coating Type\u003c\/td\u003e\n\u003ctd\u003eAnti-fogging coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal Fitting Type\u003c\/td\u003e\n\u003ctd\u003eWaterproof gasket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003e100% genuine, brand-new watch part, directly manufactured by Seiko. These are not aftermarket or refurbished components but original factory parts, ensuring a perfect fit and the highest quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eFor the latest product FAQs, please scroll down to the bottom of this product page.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":53490369921361,"sku":"200W16GA00","price":29.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/SEIKO-GENUINE-WATCH-CRYSTAL-GLASS-OEM-ORIGINAL_d7b4dcef-3d6a-4fa2-8c8d-c676f8e8683a.png?v=1775836804"},{"product_id":"seiko-snag014-5421-010a-watch","title":"Seiko SNAG014 Watch \u0026 Parts | 5421-010A | White Dial","description":"\u003cp\u003eSeiko SNAG014, case number 5421-010A, calibre 5421.\u003c\/p\u003e\u003cp\u003eThis page covers the following model numbers: SNAG014, SNAG0141.\u003c\/p\u003e\u003ch3\u003eWatch Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCase appearance: Two-tone\u003c\/li\u003e\n\u003cli\u003eDial colour: White\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":54713049350481,"sku":"SNAG014","price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/seiko-snag014-5421-010a.png?v=1787918943"},{"product_id":"seiko-snag020-5421-0100-watch","title":"Seiko SNAG020 Watch \u0026 Parts | 5421-0100 | Stainless steel, White Dial","description":"\u003cp\u003eSeiko SNAG020, case number 5421-0100, calibre 5421.\u003c\/p\u003e\u003cp\u003eThis page covers the following model numbers: SNAG020, SNAG0201.\u003c\/p\u003e\u003ch3\u003eWatch Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCase material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eBezel material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCase back material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCase back stamping: STAINLEES STEEL\u003c\/li\u003e\n\u003cli\u003eWater resistant construction: No\u003c\/li\u003e\n\u003cli\u003eDial colour: White\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCase construction: Bezel: Stainless steel. Middle case: Stainless steel. Case back: Stainless steel.\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":54713049743697,"sku":"SNAG020","price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/seiko-snag020-5421-0100.png?v=1787918943"},{"product_id":"seiko-sssd010-5421-0090-watch","title":"Seiko SSSD010 Watch \u0026 Parts | 5421-0090 | Base metal, White Dial","description":"\u003cp\u003eSeiko SSSD010, case number 5421-0090, calibre 5421.\u003c\/p\u003e\u003cp\u003eThis page covers the following model numbers: SSSD010, SSSD0101.\u003c\/p\u003e\u003ch3\u003eWatch Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCase material: Base metal\u003c\/li\u003e\n\u003cli\u003eCase finish: Palladium plating\u003c\/li\u003e\n\u003cli\u003eBezel material: Base metal\u003c\/li\u003e\n\u003cli\u003eBezel finish: Palladium plating\u003c\/li\u003e\n\u003cli\u003eCase back material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCase back stamping: PDP ST.STEEL BACK\u003c\/li\u003e\n\u003cli\u003eCase appearance: Gold plated\u003c\/li\u003e\n\u003cli\u003eWater resistant construction: No\u003c\/li\u003e\n\u003cli\u003eDial colour: White\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCase construction: Bezel: Base metal with Palladium plating. Middle case: Base metal with Palladium plating. Case back: Stainless steel.\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":54713572950353,"sku":"SSSD010","price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/seiko-sssd010-5421-0090.png?v=1787919928"},{"product_id":"seiko-sssd964-5421-5200-watch","title":"Seiko SSSD964 Watch \u0026 Parts | 5421-5200 | Base metal, Gold Dial","description":"\u003cp\u003eSeiko SSSD964, case number 5421-5200, calibre 5421.\u003c\/p\u003e\u003cp\u003eThis page covers the following model numbers: SSSD964, SSSD9641.\u003c\/p\u003e\u003ch3\u003eWatch Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCase material: Base metal\u003c\/li\u003e\n\u003cli\u003eCase finish: Seiko gold colour plating\u003c\/li\u003e\n\u003cli\u003eBezel material: Base metal\u003c\/li\u003e\n\u003cli\u003eBezel finish: Seiko gold colour plating\u003c\/li\u003e\n\u003cli\u003eCase back material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCase back stamping: BASE METAL ST.STEEL BACK\u003c\/li\u003e\n\u003cli\u003eCase appearance: Gold plated\u003c\/li\u003e\n\u003cli\u003eWater resistant construction: No\u003c\/li\u003e\n\u003cli\u003eDial colour: Gold\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCase construction: Bezel: Base metal with Seiko gold colour plating. Middle case: Base metal with Seiko gold colour plating. Case back: Stainless steel.\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":54713573179729,"sku":"SSSD964","price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/seiko-sssd964-5421-5200.png?v=1787919929"},{"product_id":"seiko-sssd965-5421-5200-watch","title":"Seiko SSSD965 Watch \u0026 Parts | 5421-5200 | Base metal, Red Dial","description":"\u003cp\u003eSeiko SSSD965, case number 5421-5200, calibre 5421.\u003c\/p\u003e\u003cp\u003eThis page covers the following model numbers: SSSD965, SSSD9651.\u003c\/p\u003e\u003ch3\u003eWatch Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCase material: Base metal\u003c\/li\u003e\n\u003cli\u003eCase finish: Seiko gold colour plating\u003c\/li\u003e\n\u003cli\u003eBezel material: Base metal\u003c\/li\u003e\n\u003cli\u003eBezel finish: Seiko gold colour plating\u003c\/li\u003e\n\u003cli\u003eCase back material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCase back stamping: BASE METAL ST.STEEL BACK\u003c\/li\u003e\n\u003cli\u003eCase appearance: Gold plated\u003c\/li\u003e\n\u003cli\u003eWater resistant construction: No\u003c\/li\u003e\n\u003cli\u003eDial colour: Red\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCase construction: Bezel: Base metal with Seiko gold colour plating. Middle case: Base metal with Seiko gold colour plating. Case back: Stainless steel.\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":54713573245265,"sku":"SSSD965","price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/seiko-sssd965-5421-5200.png?v=1787919928"},{"product_id":"seiko-sssd970-5421-5190-watch","title":"Seiko SSSD970 Watch \u0026 Parts | 5421-5190 | Base metal, White Dial","description":"\u003cp\u003eSeiko SSSD970, case number 5421-5190, calibre 5421.\u003c\/p\u003e\u003cp\u003eThis page covers the following model numbers: SSSD970, SSSD9701.\u003c\/p\u003e\u003ch3\u003eWatch Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCase material: Base metal\u003c\/li\u003e\n\u003cli\u003eCase finish: Seiko gold colour plating\u003c\/li\u003e\n\u003cli\u003eBezel material: Base metal\u003c\/li\u003e\n\u003cli\u003eBezel finish: Seiko gold colour plating\u003c\/li\u003e\n\u003cli\u003eCase back material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCase back stamping: BASE METAL ST.STEEL BACK\u003c\/li\u003e\n\u003cli\u003eCase appearance: Gold plated\u003c\/li\u003e\n\u003cli\u003eWater resistant construction: No\u003c\/li\u003e\n\u003cli\u003eDial colour: White\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCase construction: Bezel: Base metal with Seiko gold colour plating. Middle case: Base metal with Seiko gold colour plating. Case back: Stainless steel.\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":54713573310801,"sku":"SSSD970","price":0.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/3531\/7585\/files\/seiko-sssd970-5421-5190.png?v=1787919927"},{"product_id":"seiko-sssd974-5421-5190-watch","title":"Seiko SSSD974 Watch \u0026 Parts | 5421-5190 | Base metal, Gold Dial","description":"\u003cp\u003eSeiko SSSD974, case number 5421-5190, calibre 5421.\u003c\/p\u003e\u003cp\u003eThis page covers the following model numbers: SSSD974, SSSD9741.\u003c\/p\u003e\u003ch3\u003eWatch Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCase material: Base metal\u003c\/li\u003e\n\u003cli\u003eCase finish: Seiko gold colour plating\u003c\/li\u003e\n\u003cli\u003eBezel material: Base metal\u003c\/li\u003e\n\u003cli\u003eBezel finish: Seiko gold colour plating\u003c\/li\u003e\n\u003cli\u003eCase back material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCase back stamping: BASE METAL ST.STEEL BACK\u003c\/li\u003e\n\u003cli\u003eCase appearance: Gold plated\u003c\/li\u003e\n\u003cli\u003eWater resistant construction: No\u003c\/li\u003e\n\u003cli\u003eDial colour: Gold\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCase construction: Bezel: Base metal with Seiko gold colour plating. Middle case: Base metal with Seiko gold colour plating. 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