{"product_id":"seiko-original-gehausedichtung-case-back-gasket-ref-dc2630n-sonderform-nos","title":"SEIKO Original Case Back Gasket - Ref. DC2630N – Special Shape – NOS","description":"\u003cp data-start=\"295\" data-end=\"627\"\u003e \u003cstrong data-start=\"301\" data-end=\"352\"\u003eOriginal SEIKO housing gasket (パッキン \/ Gasket)\u003c\/strong\u003e with part number \u003cstrong data-start=\"373\" data-end=\"384\"\u003eDC2630N\u003c\/strong\u003e - an original NOS spare part from Japanese stock. \u003cbr data-start=\"448\" data-end=\"451\"\u003eThis is a \u003cstrong data-start=\"475\" data-end=\"531\"\u003eform-fitting seal (not a round O-ring seal)\u003c\/strong\u003e , designed for special SEIKO housings with \u003cstrong data-start=\"576\" data-end=\"626\"\u003ea square or tonneau-shaped housing\u003c\/strong\u003e .\u003c\/p\u003e\n\n\u003ch3 data-start=\"634\" data-end=\"664\"\u003e Technical specifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\n\u003cli data-start=\"668\" data-end=\"691\"\u003e\n\n \u003cstrong data-start=\"668\" data-end=\"683\"\u003eManufacturer:\u003c\/strong\u003e SEIKO\u003c\/li\u003e\n\n\u003cli data-start=\"694\" data-end=\"732\"\u003e\n\n \u003cstrong data-start=\"694\" data-end=\"718\"\u003eOriginal part number:\u003c\/strong\u003e \u003cstrong data-start=\"719\" data-end=\"730\"\u003eDC2630N\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"735\" data-end=\"781\"\u003e\n\n \u003cstrong data-start=\"735\" data-end=\"743\"\u003eType:\u003c\/strong\u003e Case Back Packing Seal\u003c\/li\u003e\n\n\u003cli data-start=\"784\" data-end=\"852\"\u003e\n\n \u003cstrong data-start=\"784\" data-end=\"793\"\u003eShape:\u003c\/strong\u003e Special shape (rectangular \/ tonneau \/ rounded square)\u003c\/li\u003e\n\n\u003cli data-start=\"855\" data-end=\"913\"\u003e\n\n \u003cstrong data-start=\"855\" data-end=\"867\"\u003eCondition:\u003c\/strong\u003e New Old Stock (unused, in original packaging)\u003c\/li\u003e\n\n\u003cli data-start=\"916\" data-end=\"936\"\u003e\n\n \u003cstrong data-start=\"916\" data-end=\"926\"\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\n\u003cli data-start=\"939\" data-end=\"997\"\u003e\n\n \u003cstrong data-start=\"939\" data-end=\"952\"\u003eMaterial:\u003c\/strong\u003e Original SEIKO sealing material (elastomer)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3 data-start=\"1004\" data-end=\"1058\"\u003e Explanation of the SEIKO part number (coding system)\u003c\/h3\u003e\n\n \u003cp data-start=\"1060\" data-end=\"1207\"\u003eThe part number \u003cstrong data-start=\"1076\" data-end=\"1087\"\u003eDC2630N\u003c\/strong\u003e follows the classic \u003cstrong data-start=\"1110\" data-end=\"1139\"\u003eSEIKO packing code system\u003c\/strong\u003e , which consists of several logically structured segments:\u003c\/p\u003e\n\n\u003ch4 data-start=\"1209\" data-end=\"1221\"\u003e \u003cstrong data-start=\"1214\" data-end=\"1219\"\u003eD\u003c\/strong\u003e\n\u003c\/h4\u003e\n\n\u003cp data-start=\"1222\" data-end=\"1337\"\u003e = \u003cstrong data-start=\"1224\" data-end=\"1260\"\u003eSeal shape \/ Cross-sectional shape\u003c\/strong\u003e\u003cbr data-start=\"1260\" data-end=\"1263\"\u003e → \u003cstrong data-start=\"1265\" data-end=\"1296\"\u003eD = Special shape \/ not round\u003c\/strong\u003e (for square or tonneau-shaped cases)\u003c\/p\u003e\n\n\u003ch4 data-start=\"1339\" data-end=\"1351\"\u003e \u003cstrong data-start=\"1344\" data-end=\"1349\"\u003eC\u003c\/strong\u003e\n\u003c\/h4\u003e\n\n\u003cp data-start=\"1352\" data-end=\"1407\"\u003e = \u003cstrong data-start=\"1354\" data-end=\"1387\"\u003eSeal width (cross-section)\u003c\/strong\u003e\u003cbr data-start=\"1387\" data-end=\"1390\"\u003e → \u003cstrong data-start=\"1392\" data-end=\"1407\"\u003eC = 0.90 mm\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4 data-start=\"1409\" data-end=\"1424\"\u003e \u003cstrong data-start=\"1414\" data-end=\"1422\"\u003e2630\u003c\/strong\u003e\n\u003c\/h4\u003e\n\n\u003cp data-start=\"1425\" data-end=\"1696\"\u003e = \u003cstrong data-start=\"1427\" data-end=\"1456\"\u003eSize of the seal\u003c\/strong\u003e\u003cbr data-start=\"1456\" data-end=\"1459\"\u003e → \u003cstrong data-start=\"1461\" data-end=\"1473\"\u003e26.30 mm\u003c\/strong\u003e (relevant internal dimension or reference dimension of the housing groove) \u003cbr data-start=\"1529\" data-end=\"1532\"\u003eFor special shapes, the number does \u003cstrong data-start=\"1571\" data-end=\"1602\"\u003enot refer to a diameter\u003c\/strong\u003e , but to the \u003cstrong data-start=\"1620\" data-end=\"1653\"\u003erelevant housing\/slot size\u003c\/strong\u003e that SEIKO uses internally for classification.\u003c\/p\u003e\n\n\u003ch4 data-start=\"1698\" data-end=\"1710\"\u003e \u003cstrong data-start=\"1703\" data-end=\"1708\"\u003eN\u003c\/strong\u003e\n\u003c\/h4\u003e\n\n\u003cp data-start=\"1711\" data-end=\"1778\"\u003e = \u003cstrong data-start=\"1713\" data-end=\"1737\"\u003eColor \/ Material code\u003c\/strong\u003e\u003cbr data-start=\"1737\" data-end=\"1740\"\u003e → \u003cstrong data-start=\"1742\" data-end=\"1778\"\u003eN = Black (standard elastomer)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp data-start=\"1780\" data-end=\"1911\"\u003e \u003cstrong data-start=\"1780\" data-end=\"1800\"\u003eIn summary:\u003c\/strong\u003e\u003cbr data-start=\"1800\" data-end=\"1803\"\u003e \u003cstrong data-start=\"1803\" data-end=\"1814\"\u003eDC2630N\u003c\/strong\u003e = black SEIKO housing gasket, \u003cstrong data-start=\"1849\" data-end=\"1863\"\u003especial shape\u003c\/strong\u003e , \u003cstrong data-start=\"1865\" data-end=\"1883\"\u003e0.90 mm width\u003c\/strong\u003e , reference size \u003cstrong data-start=\"1899\" data-end=\"1911\"\u003e26.30 mm\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3 data-start=\"1918\" data-end=\"1953\"\u003e Compatibility \/ Area of ​​application\u003c\/h3\u003e\n\n\u003cp data-start=\"1955\" data-end=\"2048\"\u003e This seal is used in \u003cstrong data-start=\"1979\" data-end=\"2022\"\u003eSEIKO housings with a non-round design\u003c\/strong\u003e , in particular:\u003c\/p\u003e\n\n\u003cul\u003e\n\n \u003cli data-start=\"2052\" data-end=\"2100\"\u003esquare or tonneau-shaped SEIKO cases\u003c\/li\u003e\n\n\u003cli data-start=\"2103\" data-end=\"2162\"\u003e classic SEIKO models from the \u003cstrong data-start=\"2136\" data-end=\"2160\"\u003e1970s–1980s\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2165\" data-end=\"2225\"\u003e mechanical and quartz models with molded case back\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003cp data-start=\"2227\" data-end=\"2411\"\u003e ⚠️ \u003cstrong data-start=\"2230\" data-end=\"2242\"\u003eImportant:\u003c\/strong\u003e\u003cbr data-start=\"2242\" data-end=\"2245\"\u003e For \u003cstrong data-start=\"2249\" data-end=\"2274\"\u003especial shaped seals,\u003c\/strong\u003e \u003cstrong data-start=\"2284\" data-end=\"2331\"\u003eexact shape matching is absolutely essential\u003c\/strong\u003e .\u003cbr data-start=\"2332\" data-end=\"2335\"\u003e The classification is \u003cstrong data-start=\"2357\" data-end=\"2396\"\u003enot based solely on millimeter measurements\u003c\/strong\u003e , but also on:\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli data-start=\"2414\" data-end=\"2427\"\u003e Case shape\u003c\/li\u003e\n\n\u003cli data-start=\"2430\" data-end=\"2448\"\u003e Seal path\u003c\/li\u003e\n\n\u003cli data-start=\"2451\" data-end=\"2478\"\u003e original SEIKO part number\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3 data-start=\"2485\" data-end=\"2515\"\u003e Installation and maintenance instructions\u003c\/h3\u003e\n\n\u003cul\u003e\n\n\u003cli data-start=\"2519\" data-end=\"2570\"\u003e Cleaning exclusively with \u003cstrong data-start=\"2548\" data-end=\"2568\"\u003eisopropyl alcohol\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2573\" data-end=\"2629\"\u003e Do not use solvents or harsh cleaners\u003c\/li\u003e\n\n\u003cli data-start=\"2632\" data-end=\"2683\"\u003e \u003cstrong data-start=\"2644\" data-end=\"2681\"\u003eLightly coat with sealing grease\u003c\/strong\u003e before installation.\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2686\" data-end=\"2728\"\u003e Always replace old, hardened seals\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3 data-start=\"2735\" data-end=\"2751\"\u003e Scope of delivery\u003c\/h3\u003e\n\n\u003cul\u003e\n\n \u003cli data-start=\"2755\" data-end=\"2803\"\u003e1 × \u003cstrong data-start=\"2759\" data-end=\"2801\"\u003eSEIKO Original Housing Gasket DC2630N\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli data-start=\"2806\" data-end=\"2833\"\u003e in original SEIKO packaging\u003c\/li\u003e\n\n\u003cli data-start=\"2836\" data-end=\"2859\"\u003e unused NOS condition\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"Vintage \u0026 JDM (Japan Domestic Market)","offers":[{"title":"Default Title","offer_id":52265202057554,"sku":null,"price":16.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/3908\/0530\/files\/FullSizeRender_0d1723d3-28c2-46f6-ba1c-9a46ce659545.heic?v=1765644938","url":"https:\/\/japanese-microbrands.com\/en\/products\/seiko-original-gehausedichtung-case-back-gasket-ref-dc2630n-sonderform-nos","provider":"Japanese Microbrands - Mario Lenke","version":"1.0","type":"link"}