{"title":"319 SR527SW Watch Batteries","description":"\u003cp\u003eThe 319 watch battery, also known as SR527SW (IEC code SR64), is a 1.55V silver oxide button cell about 5.8mm across and 2.7mm high. This page brings together every 319 battery we stock, all genuine Japanese cells from Maxell, Murata, Seiko and Seizaiken.\u003c\/p\u003e\u003cp\u003eThe SW at the end of SR527SW tells you it is a low drain cell, made for analogue watches with a low power draw. Not sure which battery you need? Search any code in our \u003ca href=\"\/pages\/watch-battery-guide\"\u003ewatch battery chart\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eUK delivery is free on every order.\u003c\/p\u003e","products":[{"product_id":"murata-319-sr527sw-1-55v-silver-oxide-mercury-free-watch-battery-made-in-japan","title":"Murata 319 SR527SW 1.55V Silver Oxide Watch Battery","description":"\u003cbody\u003e\n\n\n\n\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14pt;\"\u003eIt is essential to have a high-quality energy source with the highest reliability to power your digital \u0026amp; analog watches and other electronic products. MURATA (ex. SONY) watch batteries are known to be the most reliable watch batteries available in the market today. Supplied in the highest quality and globally to various watch and other branded electronic manufacturers, you can be confident you are buying a top quality and long-lasting battery for your timepiece.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14pt;\"\u003eSONY Batteries have undergone a rebranding and are now marketed as MURATA Batteries after their exit from the market. MURATA Manufacturing has a long history of producing batteries under the SONY brand, ensuring that you're receiving the same quality and pricing, albeit with a different brand label on the packaging and cells. These batteries continue to rank among the top-tier options for watch batteries.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14pt;\"\u003eShop our extensive selection of Murata batteries, perfect for powering your devices with long-lasting energy. Trust Murata's superior quality for all your battery needs. Buy now for dependable power and peace of mind.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 14pt;\"\u003eBattery Size: \u003cspan style=\"color: #ff0000;\"\u003e319 \/ SR527SW\u003cbr\u003e\u003cspan style=\"color: #000000;\"\u003eBattery Type:\u003c\/span\u003e Coin \/ Button Cell\u003cbr\u003e\u003cspan style=\"color: #000000;\"\u003eChemical Compostion:\u003c\/span\u003e Silver Oxide - Mercury Free 0%Hg\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eEach battery comes in a factory sealed blister pack with a long expiry date.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003c\/body\u003e","brand":"Murata","offers":[{"title":"Default Title","offer_id":50017729872210,"sku":"MURATA_319_SR527SW","price":3.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/3458\/1330\/files\/murata_319_label_2fc1c426-1481-4cca-8682-bc9b8667700d.jpg?v=1791554512"},{"product_id":"maxell-319-sr527sw-1-55v-silver-oxide-mercury-free-watch-battery-made-in-japan","title":"Maxell 319 SR527SW 1.55V Silver Oxide Watch Battery","description":"\u003cbody\u003e\n\n\n\n\n\u003cp\u003e\u003cstrong\u003eElevate your timepiece's performance with Maxell 1.55v Silver Oxide, Mercury Free Watch Batteries - the pinnacle of precision and reliability. Originating from Maxell's renowned commitment to quality since 1960, these batteries are meticulously crafted to power watches with unparalleled efficiency and longevity.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaxell Silver Oxide batteries are specially designed to meet the demands of modern timepieces, offering consistent and accurate power delivery. With a mercury-free composition, they not only ensure optimal performance but also prioritise environmental sustainability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhether you own a luxury watch or a cherished heirloom, Maxell Silver Oxide watch batteries guarantee uncompromising precision, keeping your timepiece ticking with utmost accuracy. Trust Maxell for the perfect blend of heritage, innovation, and eco-consciousness in watch battery technology.\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cspan style=\"font-size: 12pt;\"\u003e\u003cstrong\u003eBattery Size: \u003cspan style=\"color: #ff0000;\"\u003e319 \/ SR527SW\u003c\/span\u003e\u003cbr\u003eBattery Type: \u003cspan style=\"color: #ff0000;\"\u003eCoin \/ Button Cell\u003c\/span\u003e\u003cbr\u003eChemical Compostion: \u003cspan style=\"color: #ff0000;\"\u003eSilver Oxide - Mercury Free 0%Hg\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eEach battery comes in a factory sealed blister pack with a long expiry date.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003c\/body\u003e","brand":"Maxell","offers":[{"title":"Default Title","offer_id":50235282358610,"sku":"MAXELL_319_SR527SW","price":3.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/3458\/1330\/files\/maxell_319_389109d8-0eaa-4f96-9c0c-0ffb4f0ed467.jpg?v=1791546422"},{"product_id":"seiko-319-sr527sw-1-55v-silver-oxide-mercury-free-watch-battery-made-in-japan-1","title":"Seiko 319 SR527SW 1.55V Silver Oxide Watch Battery","description":"\u003cbody\u003e\n\n\n\n\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDiscover the pinnacle of power for your digital or analogue watches with Seiko watch batteries.\u003cbr\u003e\u003cbr\u003eRenowned as the most dependable energy source in the market, Seiko watch batteries stand as the premier choice for discerning watch owners. Crafted by a leading watch manufacturer, these batteries boast unparalleled quality and are trusted by watchmakers worldwide. Ensure your timepiece operates at its peak with our long-lasting, factory-sealed batteries, each packaged in a blister pack with an extended expiry date.\u003cbr\u003e\u003cbr\u003eTrust Seiko for superior performance and reliability in every tick.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 12pt;\"\u003e\u003cstrong\u003eBattery Size: \u003cspan style=\"color: #ff0000;\"\u003e319 \/ SR527SW\u003c\/span\u003e\u003cbr\u003eBattery Type: \u003cspan style=\"color: #ff0000;\"\u003eCoin \/ Button Cell\u003c\/span\u003e\u003cbr\u003eChemical Compostion: \u003cspan style=\"color: #ff0000;\"\u003eSilver Oxide - Mercury Free 0%Hg\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003c\/body\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":50238738399570,"sku":"SEIKO_319_SR527SW","price":2.51,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/3458\/1330\/files\/Seiko_319_SR527SW_1.55v_Silver_Oxide_Mercury_Free_Watch_Battery_-_Made_In_Japan.jpg?v=1739111644"},{"product_id":"seizaiken-sr527sw-silver-oxide-watch-battery-genuine-japan-made-319-long-lasting-power","title":"Seizaiken 319 SR527SW 1.55V Silver Oxide Watch Battery","description":"\u003cbody\u003e\n\n\n\n\n\u003cp\u003e\u003cstrong\u003eKeep your timepieces ticking with precision using genuine Seizaiken silver oxide watch batteries - trusted worldwide for their Japanese engineering, superior longevity, and reliability.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eManufactured by Seiko Instruments, Seizaiken batteries are specially designed for watches and offer stable voltage output, leak-resistant performance, and exceptional shelf life, making them the ideal choice for both casual users and watch professionals.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e100% Authentic - From Japan\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFresh Stock - Long Expiry Dates Guaranteed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCompatible with reference codes (e.g. 377, 364, 371 + more)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTrusted by watchmakers, repairers, and collectors\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIdeal for Seiko, Casio, Citizen watches and more\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhether you're replacing a battery for a premium wristwatch or a classic timepiece, choosing Seizaiken ensures peace of mind and long-lasting performance. We dispatch quickly from UK stock, and our packaging ensures safe delivery right to your door.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"font-size: 12pt;\"\u003e\u003cstrong\u003eBattery Size: \u003cspan style=\"color: #ff0000;\"\u003e319 \/ SR527SW\u003c\/span\u003e\u003cbr\u003eBattery Type: \u003cspan style=\"color: #ff0000;\"\u003eCoin \/ Button Cell\u003c\/span\u003e\u003cbr\u003eChemical Compostion: \u003cspan style=\"color: #ff0000;\"\u003eSilver Oxide - Mercury Free 0%Hg\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuy with confidence from a UK-based seller of genuine watch parts.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003c\/body\u003e","brand":"Seizaiken","offers":[{"title":"Default Title","offer_id":50789495832914,"sku":"SEIZAIKEN_319_SR527SW","price":3.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/3458\/1330\/files\/5226705a-e47e-41c6-a82b-18a6f286e57d.jpg?v=1747568155"}],"url":"https:\/\/www.japanwatchparts.co.uk\/collections\/319-sr527sw-watch-battery.oembed","provider":"Japan Watch Parts","version":"1.0","type":"link"}