{"product_id":"cas-ker-mainspring-ja313-for-3-0s-hampden-9696-alloy","title":"Cas-Ker Mainspring JA313 for 3\/0s Hampden No. 9696 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eCas-Ker \u003c\/strong\u003eMainspring MS-JA313 for 3\/0s \u003cstrong\u003eHampden\u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003emovements, Molly Stark and similar, likely made by Bestfit, Factory No. 9696, alloy, new in sealed package. 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 and all watch parts are unconditionally guaranteed. Images do a suitable job of representing the item.\u003c\/p\u003e","brand":"Bestfit","offers":[{"title":"Default Title","offer_id":47452388262196,"sku":"PMA-MSJA313A-08","price":12.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-08-24_11.05.14.jpg?v=1787594751","url":"https:\/\/www.vintagetimeparts.com\/products\/cas-ker-mainspring-ja313-for-3-0s-hampden-9696-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}