{"product_id":"marco-marshalloy-mainspring-2914m-for-longines-10-85m-gruen-370-movado-400-alloy","title":"Marco Marshalloy Mainspring 2914M for Longines 10.85M, Gruen 370, Movado 400 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eMarco \u003c\/strong\u003e\u003cem\u003eMarshalloy\u003c\/em\u003e\u003cstrong\u003e \u003c\/strong\u003eMainspring 2914M for Longines caliber 10.85M, Gruen caliber 370, Movado caliber 400 movements, and perhaps others, 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 in 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\/p\u003e","brand":"C \u0026 E Marshall","offers":[{"title":"Default Title","offer_id":48963935764788,"sku":"PMS-CEM2914MA-12","price":12.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-12-0920.07.03.jpg?v=1765339966","url":"https:\/\/www.vintagetimeparts.com\/products\/marco-marshalloy-mainspring-2914m-for-longines-10-85m-gruen-370-movado-400-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}