{"product_id":"trufit-mainspring-for-gruen-caliber-210-211-steel","title":"TRUFIT Mainspring for Gruen caliber 210, 211 - Steel","description":"\u003cp\u003e\u003cstrong\u003eTRUFIT\u003c\/strong\u003e steel mainspring for \u003cstrong\u003eGruen\u003c\/strong\u003e caliber 210, 211 movements and perhaps others, new in envelope. 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\/p\u003e","brand":"TRUFIT","offers":[{"title":"Default Title","offer_id":48871605272884,"sku":"PMS-TRU0210S-08","price":3.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-08-2216.14.48_8b9b8702-5fdc-4daf-bc11-3eb6d7629d91.jpg?v=1755904863","url":"https:\/\/www.vintagetimeparts.com\/products\/trufit-mainspring-for-gruen-caliber-210-211-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}