{"product_id":"bestfit-mainspring-ja103-for-18s-elgin-pocket-watches-no-812-alloy","title":"BESTFIT Mainspring JA103 for 18s Elgin Pocket Watches No. 812 - Alloy","description":"\u003cp\u003e\u003cstrong\u003eBESTFIT \u003c\/strong\u003eMainspring JA-103 for 18s \u003cstrong\u003eElgin \u003c\/strong\u003emovements, Factory No. 812, alloy, 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 is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.\u003c\/p\u003e","brand":"BESTFIT","offers":[{"title":"Default Title","offer_id":47452795109684,"sku":"PMA-MSJA103A-02","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-01-21_10.42.59.jpg?v=1769021061","url":"https:\/\/www.vintagetimeparts.com\/products\/bestfit-mainspring-ja103-for-18s-elgin-pocket-watches-no-812-alloy","provider":"Vintage Time Parts","version":"1.0","type":"link"}