{"product_id":"elgin-mainspring-no-6612-for-11-ligne-grade-643-alloy","title":"Elgin Mainspring No. 6612-(E\/A) for 11½ ligne Grade 643 (AS 1361) - Alloy","description":"\u003cp\u003e\u003cstrong\u003eElgin \u003c\/strong\u003e Mainspring for 5\/0s (11½ ligne) specifically Grade 643, 17-jewel, sweep second, automatic movement, Factory No 6612-E (sometimes also shown as 6612-A), alloy, new in envelope. The 11½ ligne movements are AS 1361 \u003cspan class=\"st\"\u003eébauche\u003c\/span\u003e based so this mainspring will fit movements other than just the specified Elgin. See image for further details. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item\u003c\/p\u003e","brand":"Elgin","offers":[{"title":"Default Title","offer_id":47452035711284,"sku":"PMA-ELG6612EA-11","price":12.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-11-01_15.49.22.jpg?v=1762037597","url":"https:\/\/www.vintagetimeparts.com\/products\/elgin-mainspring-no-6612-for-11-ligne-grade-643-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}