{"product_id":"hr-nivastar-mainspring-g429b-for-font-61-120-123-benrus-ab-as-1240-alloy","title":"HR Nivastar Mainspring G429B for Font 61, 120, 123, Benrus AB, AS 1240 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eHR \u003c\/strong\u003e\u003cem\u003eNivastar \u003c\/em\u003eMainspring G429B for Font 61, 120, 123, Benrus AB, AS 1240 caliber movements, alloy, new in envelope. See images for all calibers supported and 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 satisfactory job of representing the item.\u003c\/p\u003e","brand":"HR","offers":[{"title":"Default Title","offer_id":49043107152180,"sku":"PMS-HRNSG429BA-02","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-02-1512.00.49.jpg?v=1771185858","url":"https:\/\/www.vintagetimeparts.com\/products\/hr-nivastar-mainspring-g429b-for-font-61-120-123-benrus-ab-as-1240-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}