{"product_id":"permotone-mainspring-no-241-for-marvin-520-535-caliber-movements-alloy","title":"Permotone Mainspring No. 241 for Marvin 520, 535 caliber movements - Alloy","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eRezista \u003c\/strong\u003e\u003cem\u003ePermotone\u003c\/em\u003e\u003cstrong\u003e \u003c\/strong\u003eMainspring No. 241 for \u003cstrong\u003eMarvin\u003c\/strong\u003e caliber 520, 535, both regular subsidiary and sweep second movements and perhaps similar ébauche movements, white alloy, new in envelope. \u003cspan style=\"font-size: 14px;\"\u003eSee image for precise mainspring specifications. 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\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Rezista","offers":[{"title":"Default Title","offer_id":48879983591732,"sku":"PMS-REZMS241A-09","price":6.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-08-3116.15.23.jpg?v=1756682351","url":"https:\/\/www.vintagetimeparts.com\/products\/permotone-mainspring-no-241-for-marvin-520-535-caliber-movements-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}