{"product_id":"nivaflex-mainspring-for-12s-n-y-standard-factory-no-4144-alloy","title":"Nivaflex Mainspring for 12s N.Y. Standard Factory No. 4144 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eNivaflex \u003c\/strong\u003eMainspring for\u003cstrong\u003e New York Standard \u003c\/strong\u003e12s Movements, Factory No. 4144, T end, alloy, new in envelope. See images for precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.\u003c\/p\u003e","brand":"Nivaflex","offers":[{"title":"Default Title","offer_id":48883526041908,"sku":"PMA-NIVA4144A-09","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-09-0513.06.13.jpg?v=1757102871","url":"https:\/\/www.vintagetimeparts.com\/products\/nivaflex-mainspring-for-12s-n-y-standard-factory-no-4144-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}