{"product_id":"marco-mainspring-3079-for-eta-875-tavannes-384-385-tissot-s-4-steel","title":"Marco Mainspring #3079 for ETA 875, Tavannes 384, 385, Tissot S-4 - Steel","description":"\u003cp\u003e\u003cstrong\u003eMarco \u003c\/strong\u003eNo. 3079 steel mainspring for ETA 875, Tavannes 384, 384K 385, 386K, Tissot S-4 and perhaps even others as well, new in envelope. See images for precise mainspring specifications. 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 a pretty good job of representing the item.\u003c\/p\u003e","brand":"C \u0026 E Marshall","offers":[{"title":"Default Title","offer_id":48906553884980,"sku":"PMS-CEM3079S-09","price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-09-2517.07.35_2aaa421f-6166-43c7-8a50-dceeb095741a.jpg?v=1758845301","url":"https:\/\/www.vintagetimeparts.com\/products\/marco-mainspring-3079-for-eta-875-tavannes-384-385-tissot-s-4-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}