{"product_id":"nurezista-mainspring-573-for-waltham-12s-colonial-1924-factory-no-2237-steel","title":"NuRezista Mainspring #573 for Waltham 12s Colonial 1924 Factory No. 2237 - Steel","description":"\u003cp\u003e\u003cstrong\u003eNuRezista \u003c\/strong\u003e\u003cem\u003e\u003c\/em\u003eMainspring #573 for \u003cstrong\u003eWaltham\u003c\/strong\u003e 12s Colonial B Movements, Factory No. 2237, steel, new in envelope. See images for precise mainspring specifications and further details. 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":"NuRezista","offers":[{"title":"Default Title","offer_id":47451942191412,"sku":"PMA-NUR0573S-05","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-05-19_09.32.16.jpg?v=1747672369","url":"https:\/\/www.vintagetimeparts.com\/products\/nurezista-mainspring-573-for-waltham-12s-colonial-1924-factory-no-2237-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}