{"product_id":"watch-craft-mainspring-2721w-for-eta-500-501-505-508-545-alloy","title":"WATCH-CRAFT Mainspring 2721W for ETA 500, 501, 505, 508, 545 - Alloy","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eWATCH-CRAFT \u003c\/strong\u003eMainspring 2721W for ETA 500, 501, 505, 508, 545 caliber movements plus perhaps similar ébauche watches\u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003e, white alloy, 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\/span\u003e\u003c\/p\u003e","brand":"C \u0026 E Marshall","offers":[{"title":"Default Title","offer_id":49140817789236,"sku":"PMS-CEM2721WA-06","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-05-2916.36.53.jpg?v=1780097948","url":"https:\/\/www.vintagetimeparts.com\/products\/watch-craft-mainspring-2721w-for-eta-500-501-505-508-545-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}