{"product_id":"marco-mainspring-2914-for-longines-10-85m-gruen-370-movado-400-steel","title":"Marco Mainspring #2914 for Longines 10.85M, Gruen 370, Movado 400 - Steel","description":"\u003cp\u003e\u003cstrong\u003eMarco \u003c\/strong\u003eMainspring #2914 for \u003cstrong\u003eLongines\u003c\/strong\u003e caliber 10.85M, Gruen caliber 360, Movado caliber 400 movements, and perhaps others, steel, 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":48908418548020,"sku":"PMS-CEM2914S-10","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-09-2919.22.33.jpg?v=1759199299","url":"https:\/\/www.vintagetimeparts.com\/products\/marco-mainspring-2914-for-longines-10-85m-gruen-370-movado-400-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}