{"title":"Seiko Watch Movements","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eGenuine Seiko Watch Movements – Reliable Quartz Movements from Seiko Japan\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eExplore our range of genuine Seiko watch movements, including Hattori and Epson calibres, trusted worldwide for their precision, durability, and long-lasting performance. Hattori movements are named in honour of Seiko's founder, Kintarō Hattori, and remain one of the most widely used movement families in watch repair today.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eWhether you are replacing a faulty movement or upgrading your watch, our selection includes both 2-hand and 3-hand quartz movements, designed for accurate timekeeping and easy installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eAvailable Movement Types:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2 Hand Movements (Hour \u0026amp; Minute Only) – Ideal for slim watches\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e3 Hand Movements (Hour, Minute \u0026amp; Second) – Standard configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eWhy Choose Seiko Movements?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGenuine Japanese quality (Seiko Group)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReliable and accurate quartz performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLong battery life and low maintenance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWidely compatible with a broad range of Seiko watch models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003ePerfect For:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWatch repairs and servicing\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eReplacing damaged or faulty movements\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDIY watch restoration projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eBrowse our full range of Seiko movements below and find the right fit for your watch.\u003c\/p\u003e","products":[{"product_id":"seiko-hattori-pc21a-j-quartz-watch-movement-with-battery-stem-genuine-japan","title":"Seiko Hattori PC21A\/J Quartz Watch Movement with Battery \u0026 Stem","description":"\u003ch3\u003eSeiko Hattori PC21A\/J Quartz Watch Movement – Reliable \u0026amp; Precise\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSeiko Hattori PC21\u003c\/strong\u003e series is a genuine quartz movement made by Seiko, trusted by professional watchmakers and repairers for its reliability, accuracy, and long battery life. Hattori movements are named in honour of Seiko founder Kintarō Hattori.\u003c\/p\u003e\n\u003cp\u003eThis movement is ideal for \u003cstrong\u003ewatch repairs, replacements, and custom builds\u003c\/strong\u003e, supplied \u003cstrong\u003ebrand new, with battery\u003c\/strong\u003e and complete with a \u003cstrong\u003emetal stem\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine \u003cstrong\u003eSeiko Hattori PC21\u003c\/strong\u003e quartz movement\u003c\/li\u003e\n\u003cli\u003eMade in \u003cstrong\u003eJapan\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupplied \u003cstrong\u003ewith stem \u0026amp; battery\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh accuracy \u0026amp; low power consumption\u003c\/li\u003e\n\u003cli\u003eCompatible with PC21, PC21A, PC21AE, PC21AF, PC21J, PC21S calibre variants\u003c\/li\u003e\n\u003cli\u003eTrusted by professional watchmakers worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement Type:\u003c\/strong\u003e Quartz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Seiko Hattori PC21A\/J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 15.30 x 17.80mm (6¾ x 8 Ligne)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 3.15mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Type:\u003c\/strong\u003e 377\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Hours, Minutes, Central Seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Seiko Hattori PC21A\/J Quartz Watch Movement\u003c\/li\u003e\n\u003cli\u003e1 x 377 Battery\u003c\/li\u003e\n\u003cli\u003e1 x Metal Stem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBattery brand supplied may vary depending on availability\u003c\/li\u003e\n\u003cli\u003eImages are for illustration purposes only\u003c\/li\u003e\n\u003cli\u003eProfessional fitting recommended\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seiko Hattori","offers":[{"title":"Default Title","offer_id":54838149448022,"sku":"SEIKO-HATTORI-PC21AJ-KIT","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/1439\/9062\/files\/HattoriPC21Movement-A.png?v=1785338317"},{"product_id":"seiko-epson-y121-quartz-watch-movement-with-battery-stem-genuine-japan","title":"Seiko Epson Y121 Quartz Watch Movement with Battery \u0026 Stem","description":"\u003ch3\u003eSeiko Epson Y121 Quartz Watch Movement – Reliable \u0026amp; Precise\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSeiko Epson Y121\u003c\/strong\u003e is a genuine quartz movement made by Seiko Epson, trusted by professional watchmakers and repairers for its reliability, accuracy, and long battery life.\u003c\/p\u003e\n\u003cp\u003eThis movement is ideal for \u003cstrong\u003ewatch repairs, replacements, and custom builds\u003c\/strong\u003e, supplied \u003cstrong\u003ebrand new, with battery\u003c\/strong\u003e and complete with a \u003cstrong\u003emetal stem\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine \u003cstrong\u003eSeiko Epson Y121\u003c\/strong\u003e quartz movement\u003c\/li\u003e\n\u003cli\u003eMade in \u003cstrong\u003eJapan\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupplied \u003cstrong\u003ewith stem \u0026amp; battery\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh accuracy \u0026amp; low power consumption\u003c\/li\u003e\n\u003cli\u003eCompatible with Y121, V515A calibre variants\u003c\/li\u003e\n\u003cli\u003eTrusted by professional watchmakers worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement Type:\u003c\/strong\u003e Quartz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Seiko Epson Y121\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 15.30 x 17.80mm (6¾ x 8 Ligne)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHour wheel height over dial seat:\u003c\/strong\u003e 0.80mm (Height 1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Type:\u003c\/strong\u003e 377\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Hours, Minutes, Central Seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Seiko Epson Y121 Quartz Watch Movement\u003c\/li\u003e\n\u003cli\u003e1 x 377 Battery\u003c\/li\u003e\n\u003cli\u003e1 x Metal Stem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBattery brand supplied may vary depending on availability\u003c\/li\u003e\n\u003cli\u003eImages are for illustration purposes only\u003c\/li\u003e\n\u003cli\u003eProfessional fitting recommended\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":54838156296534,"sku":"SEIKO-EPSON-Y121H1-KIT","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/1439\/9062\/files\/EpsonY121Movement-A.png?v=1785338319"}],"url":"https:\/\/www.chronostraps.co.uk\/collections\/seiko-movements.oembed","provider":"Chrono Straps UK","version":"1.0","type":"link"}