{"product_id":"marco-mainspring-533-for-12s-13s-illinois-factory-no-47336-steel","title":"Marco Mainspring #533 for 12s - 13s Illinois Factory No. 47336 - Steel","description":"\u003cp\u003e\u003cstrong\u003eMarco\u003c\/strong\u003e Mainspring #533 for 12s - 13s \u003cstrong\u003eIllinois\u003c\/strong\u003e Thin Model Motor Barrel, Factory No. 47336, 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. Most look to be repackaged factory mainsprings. I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. See image for precise characteristics. Images do a pretty good job of representing the item.\u003cbr\u003e\u003c\/p\u003e","brand":"C \u0026 E Marshall","offers":[{"title":"Default Title","offer_id":49037240664372,"sku":"PMA-CEM0533S-02","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-02-0716.10.36.jpg?v=1770509919","url":"https:\/\/www.vintagetimeparts.com\/products\/marco-mainspring-533-for-12s-13s-illinois-factory-no-47336-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}