{"product_id":"borel-mainspring-sa350-for-howard-18s-no-55-alloy","title":"BOREL Mainspring SA350 for E. Howard 18s No. 55 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eBOREL\u003c\/strong\u003e Mainspring SA350 for \u003cstrong\u003eE. Howard \u003c\/strong\u003e18s\u003cstrong\u003e \"N\" \u003c\/strong\u003emovements, Factory No. 55, alloy, 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 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":"BOREL","offers":[{"title":"Default Title","offer_id":48689322918196,"sku":"PMA-BORSA350S-05","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-07-1609.26.43.jpg?v=1752683352","url":"https:\/\/www.vintagetimeparts.com\/products\/borel-mainspring-sa350-for-howard-18s-no-55-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}