{"product_id":"rn-mainspring-no-740-for-bulova-caliber-8an-8az-steel","title":"RN Mainspring No.740 for Bulova caliber 8AN, 8AZ - Steel","description":"\u003cp\u003e\u003cstrong\u003eRN \u003c\/strong\u003eNo. 740 steel mainspring for \u003cstrong\u003eBulova\u003c\/strong\u003e 8AN, 8AZ caliber movements and perhaps several others as well, 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 an adequate job of representing the item.\u003c\/p\u003e","brand":"RN","offers":[{"title":"Default Title","offer_id":49163654562100,"sku":"PMS-RNMS740S-06","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-06-1515.04.50.jpg?v=1781561252","url":"https:\/\/www.vintagetimeparts.com\/products\/rn-mainspring-no-740-for-bulova-caliber-8an-8az-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}