{"product_id":"watch-craft-mainspring-2738w-for-kurth-25-451-gsw-23-7-alloy","title":"WATCH-CRAFT Mainspring 2738W for Kurth 25-451, GSW 23.7 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eWATCH-CRAFT \u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/em\u003ealloy mainspring 2738W for Kurth caliber 25-451, Geneva Sports Watch Chronograph caliber 23.7 caliber movements, plus similar ébauche watches including numerous Kurth 24-451 based watches (Hamilton 662, 690) 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\/p\u003e","brand":"C \u0026 E Marshall","offers":[{"title":"Default Title","offer_id":49073960583476,"sku":"PMS-CEM2738WA-04","price":12.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-03-3010.39.20.jpg?v=1774892783","url":"https:\/\/www.vintagetimeparts.com\/products\/watch-craft-mainspring-2738w-for-kurth-25-451-gsw-23-7-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}