{"product_id":"bestfit-mainspring-2510h-for-gruen-caliber-405-410-420-alloy","title":"BESTFIT Mainspring 2510H for Gruen caliber 405, 410, 420 - Alloy","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eBESTFIT \u003c\/strong\u003eMainspring 2510H for \u003cstrong\u003eGruen \u003c\/strong\u003ecalibers 405, 410, 420 plus perhaps similar ébauche watches, white alloy. See images for precise mainspring specifications. I likely have several of these so the one you get may differ slightly from the images. 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":"BESTFIT","offers":[{"title":"Default Title","offer_id":48450613412148,"sku":"PMS-BEST2510HA-08","price":12.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-02-0121.00.47.jpg?v=1738473148","url":"https:\/\/www.vintagetimeparts.com\/products\/bestfit-mainspring-2510h-for-gruen-caliber-405-410-420-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}