{"product_id":"comsco-mainspring-2210-for-south-bend-12s-factory-no-55528-steel","title":"Comsco Mainspring #2210 for South Bend 12s Factory No. 55528 - Steel","description":"\u003cp\u003e\u003cstrong\u003eComsco\u003c\/strong\u003e Mainspring #2210 for \u003cstrong\u003eSouth Bend\u003c\/strong\u003e 12s, Factory Number 55528, steel, new in envelope. See images for precise mainspring specifications. I likely have several of these so the one you get may different slightly from the images. I specialize is 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":"Comsco","offers":[{"title":"Default Title","offer_id":49169353539892,"sku":"PMA-COMS2210S-07","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-06-2213.11.11.jpg?v=1782159187","url":"https:\/\/www.vintagetimeparts.com\/products\/comsco-mainspring-2210-for-south-bend-12s-factory-no-55528-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}