{"product_id":"marathon-mainspring-411-for-hamilton-12-0s-no-4128-steel","title":"Marathon Mainspring #411 for Hamilton 12\/0s No. 4128 - Steel","description":"\u003cp\u003e\u003cstrong\u003eMarathon \u003c\/strong\u003esteel mainspring #411 for \u003cstrong\u003eHamilton\u003c\/strong\u003e 12\/0s movements, Factory No. 4128, new in envelope. See images for precise mainspring specifications. I specialize in 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.\u003c\/p\u003e","brand":"Marathon","offers":[{"title":"Default Title","offer_id":48506065846580,"sku":"PMA-MAR0411S-03","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-03-1513.47.39.jpg?v=1742071778","url":"https:\/\/www.vintagetimeparts.com\/products\/marathon-mainspring-411-for-hamilton-12-0s-no-4128-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}