{"product_id":"alloy-mainspring-for-gruen-179-bulova-9an-9at","title":"Alloy Mainspring for Gruen 179, Bulova 9AN, 9AT","description":"\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eUnmarked Maker Swiss Mainspring for Gruen caliber 179 \u0026amp; Bulova caliber 9AN, 9AT movements, plus perhaps similar movements, GR Ref. 2918, white alloy, new in tiny envelope. See images for precise mainspring specifications.  I specialize in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item. \u003c\/span\u003e\u003c\/p\u003e","brand":"VTP","offers":[{"title":"Default Title","offer_id":48875548770612,"sku":"PMS-VTPGR2918A-09","price":7.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-08-2714.50.23.jpg?v=1756334375","url":"https:\/\/www.vintagetimeparts.com\/products\/alloy-mainspring-for-gruen-179-bulova-9an-9at","provider":"Vintage Time Parts","version":"1.0","type":"link"}