{"product_id":"alloy-mainspring-for-16s-south-bend-factory-no-27528","title":"Alloy Mainspring for 16s South Bend Factory No. 27528","description":"\u003cp\u003eUnmarked Maker but Swiss Made Alloy Mainspring for 16s\u003cstrong\u003e South Bend\u003c\/strong\u003e, Factory No. 27528, new in envelope. 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 job of representing the item.\u003cbr\u003e\u003c\/p\u003e","brand":"Unmarked","offers":[{"title":"Default Title","offer_id":47452605972788,"sku":"PMA-STA27528A-10","price":17.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-10-1020.13.11.jpg?v=1791688490","url":"https:\/\/www.vintagetimeparts.com\/products\/alloy-mainspring-for-16s-south-bend-factory-no-27528","provider":"Vintage Time Parts","version":"1.0","type":"link"}