{"product_id":"marco-mainspring-2747-for-wittnauer-10k-11k-as-341-a-michael-277-280-420-270-steel","title":"Marco Mainspring #2747 for Wittnauer 10K, 11K, AS 341, A. Michael 270, 277, 280, 420 - Steel","description":"\u003cp\u003e\u003cstrong\u003eMarco \u003c\/strong\u003esteel mainspring #2747 for Wittnauer 10K, 11K, AS 341, A. Michael 270, 277, 280, 420 caliber movements. 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":49005196509492,"sku":"PMS-CEM2747S-01","price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-01-2316.10.06.jpg?v=1769213514","url":"https:\/\/www.vintagetimeparts.com\/products\/marco-mainspring-2747-for-wittnauer-10k-11k-as-341-a-michael-277-280-420-270-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}