{"product_id":"nuvigor-mainspring-104-for-elgin-4-0s-factory-no-4789-steel","title":"NuVigor Mainspring #104 for Elgin 4\/0s Factory No. 4789 - Steel","description":"\u003cp\u003e\u003cstrong\u003eNuVigor\u003c\/strong\u003e Mainspring #104 for \u003cstrong\u003eElgin\u003c\/strong\u003e 4\/0s movements, Factory No, 4789, steel, 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 is hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.\u003c\/p\u003e","brand":"NuVigor","offers":[{"title":"Default Title","offer_id":48732895510836,"sku":"PMA-NUV0104S-07","price":2.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-07-2414.07.39.jpg?v=1753391462","url":"https:\/\/www.vintagetimeparts.com\/products\/nuvigor-mainspring-104-for-elgin-4-0s-factory-no-4789-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}