{"product_id":"hr-mainspring-sa226-for-hamilton-18-0s-2721-718501-alloy","title":"HR Mainspring SA226 for Hamilton 18\/0s No. 2721 \/ 718501 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eHR\u003c\/strong\u003e Mainspring SA226 for \u003cstrong\u003eHamilton \u003c\/strong\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e18\/0s movements, Factory No's 2721 \/ 718501, 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":"HR","offers":[{"title":"Default Title","offer_id":47452201681204,"sku":"PMA-HRSA226A-02","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/products\/2267012293.jpg?v=1705286192","url":"https:\/\/www.vintagetimeparts.com\/products\/hr-mainspring-sa226-for-hamilton-18-0s-2721-718501-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}