{"product_id":"south-bend-18s-mainspring-no-9528-made-by-elgin-steel","title":"South Bend 18s Mainspring No. 9525 Made by Elgin - Steel","description":"\u003cp\u003e\u003cstrong\u003eSouth Bend \u003c\/strong\u003e18s\u003cstrong\u003e \u003c\/strong\u003eMainspring Factory No. 9525 made by Elgin, steel, new in envelope. This is is a beautiful mainspring made for very early South Bend 18s movements and is a very difficult number to find, see images for precise mainspring specifications. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate but perhaps incomplete job of representing the item.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Elgin","offers":[{"title":"Default Title","offer_id":49140130382132,"sku":"PMA-SB9525S-06","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-05-2819.33.29.jpg?v=1780022522","url":"https:\/\/www.vintagetimeparts.com\/products\/south-bend-18s-mainspring-no-9528-made-by-elgin-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}