{"product_id":"swartchild-black-shield-mainspring-4339-for-waltham-0s-1s-no-2216-steel","title":"Swartchild Black Shield Mainspring #4339 for Waltham 1s \u0026 0s No. 2216 - Steel","description":"\u003cp\u003e\u003cstrong\u003eSwartchild\u003c\/strong\u003e \u003cem\u003eBlack Shield\u003c\/em\u003e Mainspring No.4339 for \u003cstrong\u003eWaltham\u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003e1s \u0026amp; 0s movements, Factory No. 2216, steel, new in envelope. See images for further details. I likely have several of these so the one you get may vary slightly from the images. I specialize in 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":48256782074164,"sku":"PMA-SWBS4339S-09","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2024-09-2816.41.15.jpg?v=1727567279","url":"https:\/\/www.vintagetimeparts.com\/products\/swartchild-black-shield-mainspring-4339-for-waltham-0s-1s-no-2216-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}