{"product_id":"sunon-sl28-quartz-movement-3-hand-calendar-date-replacement","title":"Sunon SL28 Quartz Movement 3-Hand Calendar Date 23.70mm","description":"\n\u003ch2\u003eSunon SL28 (SL28-6) Quartz Clock Movement – 3-Hand Day\/Date\u003c\/h2\u003e\n\u003cp\u003eKeep your clocks running accurately with this brand-new \u003cstrong\u003eSunon SL28 quartz movement\u003c\/strong\u003e. Featuring a three-hand design with a sweeping seconds hand and a built-in day\/date calendar wheel, this compact module is a reliable, cost-effective replacement for the 2115-20z movement and similar units. Whether you're a watchmaker, hobbyist, or DIY clock restorer, this movement delivers consistent timekeeping in a slim, easy-to-install package.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3-Hand Day\/Date Function:\u003c\/strong\u003e Displays hours, minutes, and a sweep second hand alongside a calendar date wheel for full timekeeping functionality.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Dimensions:\u003c\/strong\u003e Diameter Φ23.70 mm, Height 4.15 mm — fits a wide range of clock and watch cases.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±60 seconds per month for dependable everyday timekeeping.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDate Wheel:\u003c\/strong\u003e Black English-font date display for clear, easy reading.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Replacement:\u003c\/strong\u003e Direct substitute for the 2115-20z movement and comparable quartz modules.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand New \u0026amp; High Quality:\u003c\/strong\u003e 100% new manufacture — not refurbished or reconditioned.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSunon SL28 \/ SL28-6\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQuartz Movement\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunctions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Hands (H\/M\/S sweep), Day\/Date Calendar\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eΦ23.70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.15 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±60 sec\/month\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDate Wheel Color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDate Wheel Font\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEnglish\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eThis movement is ideal for \u003cstrong\u003eclock and watch repair technicians\u003c\/strong\u003e, hobbyists building custom clocks, and anyone seeking a budget-friendly replacement for a worn-out or damaged quartz module. Its slim profile and standard sizing make installation straightforward with basic watchmaking tools.\u003c\/p\u003e\n\n\u003cp\u003eFor general guidance on clock mechanisms and timekeeping standards, visit the \u003ca href=\"https:\/\/www.nist.gov\/time-and-frequency\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST Time \u0026amp; Frequency Division\u003c\/a\u003e — the national authority on accurate timekeeping.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is the Sunon SL28 quartz movement compatible with 2115-20z movement cases?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The Sunon SL28 \/ SL28-6 is designed as a direct replacement for the 2115-20z movement and other movements with similar dimensions (Φ23.70 mm diameter, 4.15 mm height), making it a straightforward swap in most compatible clock and watch cases.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this quartz movement include a calendar date function?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The SL28-6 features a full 3-hand layout — hour, minute, and sweep second — plus a day\/date calendar wheel printed in black English font, giving you complete timekeeping and date display in one compact module.\u003c\/p\u003e\n\u003ch4\u003eQ: What tools do I need to install this quartz clock movement?\u003c\/h4\u003e\n\u003cp\u003eA: Basic watchmaking or clock repair tools are typically sufficient — hand-setting tools, a movement holder, and a case opener. The movement's standard sizing means it seats securely into compatible cases without modification in most instances.\u003c\/p\u003e\n\u003ch4\u003eQ: How accurate is the Sunon SL28 quartz movement?\u003c\/h4\u003e\n\u003cp\u003eA: The movement is rated at ±60 seconds per month, which is typical performance for an entry-level quartz replacement module — suitable for decorative clocks, DIY projects, and everyday household use.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the Sunon SL28 quartz movement compatible with 2115-20z movement cases?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The Sunon SL28 \/ SL28-6 is designed as a direct replacement for the 2115-20z movement and other movements with similar dimensions (Φ23.70 mm diameter, 4.15 mm height), making it a straightforward swap in most compatible clock and watch cases.\"}}, {\"@type\": \"Question\", \"name\": \"Does this quartz movement include a calendar date function?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. The SL28-6 features a full 3-hand layout — hour, minute, and sweep second — plus a day\/date calendar wheel printed in black English font, giving you complete timekeeping and date display in one compact module.\"}}, {\"@type\": \"Question\", \"name\": \"What tools do I need to install this quartz clock movement?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Basic watchmaking or clock repair tools are typically sufficient — hand-setting tools, a movement holder, and a case opener. The movement's standard sizing means it seats securely into compatible cases without modification in most instances.\"}}, {\"@type\": \"Question\", \"name\": \"How accurate is the Sunon SL28 quartz movement?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The movement is rated at ±60 seconds per month, which is typical performance for an entry-level quartz replacement module — suitable for decorative clocks, DIY projects, and everyday household use.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Jewelry \u0026 Watches\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/jewelry-watches\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Sunon SL28 Quartz Movement 3-Hand Calendar Date 23.70mm\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/sunon-sl28-quartz-movement-3-hand-calendar-date-replacement\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"SL28-6","offer_id":48731002044608,"sku":"14:29#SL28-6","price":8.99,"currency_code":"USD","in_stock":true},{"title":"SL28DD","offer_id":48731002077376,"sku":"14:173#SL28DD","price":8.99,"currency_code":"USD","in_stock":true},{"title":"SL28D-3","offer_id":48731002110144,"sku":"14:10#SL28D-3","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/Sc9a91307dcb84b1da3d948f8c2a52cbes.webp?v=1786099930","url":"https:\/\/vueselect.com\/products\/sunon-sl28-quartz-movement-3-hand-calendar-date-replacement","provider":"Vue","version":"1.0","type":"link"}