{"product_id":"jurgensen-mainspring-546-for-waltham-colonial-b-no-2237-steel","title":"Jurgensen Mainspring #546 for Waltham Colonial B No. 2237 - Steel","description":"\u003cp\u003e\u003cstrong\u003eJurgensen\u003c\/strong\u003e Mainspring #546 for \u003cstrong\u003eWaltham\u003c\/strong\u003e Colonial B Movements, Factory No 2237, steel, 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 in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a satisfactory job of representing the item.\u003c\/p\u003e","brand":"Jurgensen","offers":[{"title":"Default Title","offer_id":49134988067124,"sku":"PMA-JURG546S-05","price":6.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-05-2209.15.05.jpg?v=1779466618","url":"https:\/\/www.vintagetimeparts.com\/products\/jurgensen-mainspring-546-for-waltham-colonial-b-no-2237-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}