{"product_id":"marco-mainspring-3273-for-longines-5ln-8m-8-68abc-15-18-steel","title":"Marco Mainspring #3273 for Longines 5LN, 8M, 8.68ABC, 15.18  - Steel","description":"\u003cp\u003e\u003cstrong\u003eMarco \u003c\/strong\u003eMainspring 3273 for \u003cstrong\u003eLongines \u003c\/strong\u003e15.18, 5LN, 5LNS, 8M, 8MS, 8.68ABC and perhaps other similar movements, 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 a pretty good job of representing the item.\u003c\/p\u003e","brand":"C \u0026 E Marshall","offers":[{"title":"Default Title","offer_id":48894893162804,"sku":"PMS-CEM3273S-09","price":4.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-09-1513.40.18.jpg?v=1757968926","url":"https:\/\/www.vintagetimeparts.com\/products\/marco-mainspring-3273-for-longines-5ln-8m-8-68abc-15-18-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}