{"product_id":"nivaflex-unbreakable-mainspring-for-gruen-280-alloy","title":"Nivaflex Unbreakable Mainspring for Gruen 280 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eNivaflex\u003c\/strong\u003e Unbreakable mainspring for \u003cstrong\u003eGruen\u003c\/strong\u003e caliber 280 plus perhaps other similar \u003cspan class=\"st\"\u003eébauche\u003c\/span\u003e movements as well, alloy, new in envelope. See images for precise mainspring specifications. I specialize in hard to find watch parts so I usually have whatever you might need 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":48893340025140,"sku":"PMS-NIVA3147A-09","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-09-1313.19.19.jpg?v=1757794846","url":"https:\/\/www.vintagetimeparts.com\/products\/nivaflex-unbreakable-mainspring-for-gruen-280-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}