{"product_id":"marco-mainspring-3278-for-eterna-691-976-felsa-4520-junghans-79s-record-130-tissot-709-steel","title":"Marco Mainspring #3278 for Eterna 691, 976, Felsa 4520, Junghans 79S, Record 130, Tissot 709 - Steel","description":"\u003cp\u003e\u003cstrong\u003eMarco \u003c\/strong\u003eMainspring No. 3278 for Eterna 691, 976, Felsa 4520, Junghans 79S, Record 130, Tissot 709 caliber movements, and perhaps others, steel, 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":48994382348596,"sku":"PMS-CEM3278S-01","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-01-1018.42.52.jpg?v=1768099666","url":"https:\/\/www.vintagetimeparts.com\/products\/marco-mainspring-3278-for-eterna-691-976-felsa-4520-junghans-79s-record-130-tissot-709-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}