{"product_id":"hr-nivastar-mainspring-g325-for-felsa-197-cyma-434-gruen-275-280-360-alloy","title":"HR Nivastar Mainspring G325 for Felsa 197, Cyma 434, Gruen 275, 280, 360 - Alloy","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003eHR \u003c\/strong\u003e\u003ci\u003eNivastar\u003c\/i\u003e\u003cstrong\u003e\u003ci\u003e \u003c\/i\u003e\u003c\/strong\u003eMainspring G325 for Cyma caliber 434, Felsa caliber 197, Gruen caliber 275, 280, 360 movements plus perhaps other similar ébauche watches, white alloy, 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 is hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item. \u003c\/span\u003e\u003c\/p\u003e","brand":"HR","offers":[{"title":"Default Title","offer_id":49000382464308,"sku":"PMS-HRNSG325A-01","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-01-1913.59.23.jpg?v=1768860121","url":"https:\/\/www.vintagetimeparts.com\/products\/hr-nivastar-mainspring-g325-for-felsa-197-cyma-434-gruen-275-280-360-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}