{"product_id":"nuvigor-mainspring-227-for-hamilton-18s-factory-no-15-steel","title":"NuVigor Mainspring #227 for Hamilton 18s Factory No. 15 - Steel","description":"\u003cp\u003e\u003cstrong\u003eNuVigor\u003c\/strong\u003e Mainspring #227 for \u003cstrong\u003eHamilton\u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003e18s\u003cstrong\u003e \u003c\/strong\u003emovements, Factory No. 15, steel, new in possibly frail 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":"NuVigor","offers":[{"title":"Default Title","offer_id":48681970860340,"sku":"PMA-NUV0227S-06","price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-07-1419.10.40.jpg?v=1752545616","url":"https:\/\/www.vintagetimeparts.com\/products\/nuvigor-mainspring-227-for-hamilton-18s-factory-no-15-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}