{"product_id":"elgin-factory-mainspring-for-5-ligne-grade-313-fef-6620-alloy","title":"Elgin Factory Mainspring for 5½ Ligne Grade 313 (FEF 6620) - Alloy","description":"\u003cp\u003e\u003cstrong\u003eElgin \u003c\/strong\u003e Factory Mainspring for 5½\n\nligne Grade 313 movement, Swiss (tongue) end, alloy, new in envelope. This Grade 313 (not to be confused with the much older 16s of the same grade) is a FEF caliber 6620 based Swiss ladies bracelet movement. See images for further details.  I specialize in hard to find watch parts and all watch parts are \nunconditionally guaranteed. Images do a satisfactory job of representing the item\u003c\/p\u003e","brand":"Elgin","offers":[{"title":"Default Title","offer_id":47452852224308,"sku":"PMS-ELG258313A-08","price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/products\/3793273903.jpg?v=1705295928","url":"https:\/\/www.vintagetimeparts.com\/products\/elgin-factory-mainspring-for-5-ligne-grade-313-fef-6620-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}