{"product_id":"marco-mainspring-501-for-illinois-18s-no-47302-steel","title":"Marco Mainspring #501 for Illinois 18s No. 47302 - Steel","description":"\u003cp\u003e\u003cstrong\u003eMarco \u003c\/strong\u003eMainspring No. 501 for \u003cstrong\u003eIllinois\u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003e18s\u003cstrong\u003e \u003c\/strong\u003em\u003cstrong\u003e\u003c\/strong\u003eovements, Factory No. 47302, 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 in hard to find watch parts and all watch parts are unconditionally guaranteed. mages do a pretty good job of representing the item.\u003c\/p\u003e","brand":"C \u0026 E Marshall","offers":[{"title":"Default Title","offer_id":49028528898356,"sku":"PMA-CEM0501S-02","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-02-0413.36.19.jpg?v=1770241116","url":"https:\/\/www.vintagetimeparts.com\/products\/marco-mainspring-501-for-illinois-18s-no-47302-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}