{"product_id":"swartchild-black-shield-mainspring-for-elgin-18s-no-812-steel","title":"Swartchild Black Shield Mainspring #4352 for Elgin 18s No. 812 - Steel","description":"\u003cp\u003e\u003cstrong\u003eSwartchild \u003c\/strong\u003e\u003ci\u003eBlack Shield\u003c\/i\u003e Mainspring #4352 for 18s \u003cstrong\u003eElgin\u003c\/strong\u003e, 17j to 21j, Factory No. 812, 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":"Swartchild","offers":[{"title":"Default Title","offer_id":47452694184244,"sku":"PMA-SWA4352S-08","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/products\/3221018751.jpg?v=1705292281","url":"https:\/\/www.vintagetimeparts.com\/products\/swartchild-black-shield-mainspring-for-elgin-18s-no-812-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}