{"product_id":"hr-mainspring-no-396-for-bulova-4ac-6e-6ao-6ta-6taa-7hi-7m-steel","title":"HR Mainspring No. 396 for Bulova 4AC, 6E, 6AO, 6TA, 6TAA, 7HI, 7M - Steel","description":"\u003cp\u003e\u003cstrong\u003eHR \u003c\/strong\u003eMainspring\u003cstrong\u003e \u003c\/strong\u003eNo. 396 for \u003cstrong\u003eBulova\u003c\/strong\u003e caliber 4AC, 6E, 6AO, 6TA, 6TAA, 7HI, 7M movements, plus perhaps others, steel, new in envelope. See images for precise mainspring specifications. Now to editorialize a bit...I know this is the correct mainspring for the 6AO and is suitable for the 6TA \u0026amp; 6TAA but the others I cannot confirm, which is unusual. I like to check them to make sure it will fit before you go to use it so I wanted to point this out.  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.\u003c\/p\u003e","brand":"HR","offers":[{"title":"Default Title","offer_id":48462861926708,"sku":"PMS-HRM0396S-05","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-02-1019.48.18.jpg?v=1739245748","url":"https:\/\/www.vintagetimeparts.com\/products\/hr-mainspring-no-396-for-bulova-4ac-6e-6ao-6ta-6taa-7hi-7m-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}