{"product_id":"nivaflex-mainspring-n7417-for-a-michel-290-291-precimax-400-450-universal-260-261-alloy","title":"Nivaflex Unbreakable Mainspring N7417 for A. Michel 290, 291, Precimax 400, 450, Universal 260, 261 - Alloy","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eNivaflex \u003c\/strong\u003eUnbreakable\u003cstrong\u003e \u003c\/strong\u003eMainspring N 7417\u003cem\u003e \u003c\/em\u003efor A. Michel 290, 291, Precimax 400, 450, AS 574, 602, 616, 637, 663, 699, Universal 260, 261 caliber movements plus perhaps other similar ébauche watches, 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 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\/span\u003e\u003c\/p\u003e","brand":"Nivaflex","offers":[{"title":"Default Title","offer_id":48600189337908,"sku":"PMS-NIVAN7417A-06","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-05-2713.05.13.jpg?v=1748376499","url":"https:\/\/www.vintagetimeparts.com\/products\/nivaflex-mainspring-n7417-for-a-michel-290-291-precimax-400-450-universal-260-261-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}