{"product_id":"tru-time-mainspring-for-hamilton-12s-factory-no-1228-steel","title":"Tru-Time Mainspring For Hamilton 12s Factory No. 1228 - Steel","description":"\u003cp\u003e\u003cstrong\u003eTru-Time \u003c\/strong\u003eMainspring for \u003cstrong\u003eHamilton\u003c\/strong\u003e 12s Factory No. 1228, steel, new in envelope. See images for further details and precise mainspring 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 so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.\u003cbr\u003e\u003c\/p\u003e","brand":"Tru-Time","offers":[{"title":"Default Title","offer_id":48576198213940,"sku":"PMA-TTM1228S-05","price":3.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-05-0913.23.17.jpg?v=1746822359","url":"https:\/\/www.vintagetimeparts.com\/products\/tru-time-mainspring-for-hamilton-12s-factory-no-1228-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}