{"product_id":"south-bend-0s-mainspring-no-12528-made-by-waltham-steel","title":"South Bend 0s Mainspring No. 12528 Made by Waltham - Steel","description":"\u003cp\u003e\u003cstrong\u003eSouth Bend \u003c\/strong\u003e0s\u003cstrong\u003e \u003c\/strong\u003eMainspring Factory No. 12528 made by Waltham, steel, new in very frail envelope. This is not the first time I've run across a mainspring that Waltham made for a competing maker and I don't get the sense that they did as much finishing on these as they did the ones they made for their watches. 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":"Waltham","offers":[{"title":"Default Title","offer_id":48878455816500,"sku":"PMA-SB12528S-09","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-08-2916.40.08.jpg?v=1756511076","url":"https:\/\/www.vintagetimeparts.com\/products\/south-bend-0s-mainspring-no-12528-made-by-waltham-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}