{"product_id":"swartchild-black-shield-mainspring-for-elgin-3-0s-2097-steel","title":"Swartchild Black Shield Mainspring for Elgin 3\/0s No. 2097 - Steel","description":"\u003cp\u003e\u003cstrong\u003eSwartchild \u003c\/strong\u003e\u003cem\u003eBlack Shield\u003c\/em\u003e Mainspring #19460 for \u003cstrong\u003eElgin \u003c\/strong\u003e3\/0s, 7j to 15j, Factory No. 2097, steel, new in envelope. See images for precise mainspring specifications. If you have a keen eye you'll notice it is marked 2907 instead of 2097 - every one I've ever seen is like this. Anyhow, this is the strength for the 3\/0s not the 0s so be sure to check which 2097 you need. 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":47452204073268,"sku":"PMA-SBS19460S-12","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/products\/2281400451.jpg?v=1705286318","url":"https:\/\/www.vintagetimeparts.com\/products\/swartchild-black-shield-mainspring-for-elgin-3-0s-2097-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}