{"product_id":"swartchild-black-shield-mainspring-for-elgin-5-0s-no-2890-steel","title":"Swartchild Black Shield Mainspring for Elgin 5\/0s No. 2890 - Steel","description":"\u003cp\u003e\u003cstrong\u003eSwartchild \u003c\/strong\u003e\u003cem\u003eBlack Shield\u003c\/em\u003e Mainspring #19348 for \u003cstrong\u003eElgin \u003c\/strong\u003e5\/0s, 1st \u0026amp; 2nd models, Factory No. 2890, steel, new in envelope. See images for precise 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 and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.\u003c\/p\u003e","brand":"Swartchild","offers":[{"title":"Default Title","offer_id":49038389248308,"sku":"PMA-SW19348S-02","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-02-0916.27.32.jpg?v=1770683320","url":"https:\/\/www.vintagetimeparts.com\/products\/swartchild-black-shield-mainspring-for-elgin-5-0s-no-2890-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}