{"product_id":"bestfit-mainspring-for-swiss-8-day-alarm-car-clock-t430-3","title":"BESTFIT Mainspring for SWISS 8-day Alarm \/ Car Clock 4.30mm x .25mm - T430-3","description":"\u003cp\u003e\u003cstrong\u003eBestfit \u003c\/strong\u003eSystem #77 Mainspring for SWISS 8-Day Car or Travel Clock, Dennison 34 x 0 x 48\", No. T430-3, presumably the TIME side spring, regular Tongue end, steel, new in envelope. See images for precise mainspring specifications. I find these very infrequently so grab them when you can. I specialize in hard to find watch \u0026amp; clock parts and all parts are unconditionally guaranteed. Images do a pretty good job of representing the item\u003c\/p\u003e","brand":"BESTFIT","offers":[{"title":"Default Title","offer_id":48606854545716,"sku":"CMS-BESTE4303S-06","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2025-06-0119.48.09.jpg?v=1748832726","url":"https:\/\/www.vintagetimeparts.com\/products\/bestfit-mainspring-for-swiss-8-day-alarm-car-clock-t430-3","provider":"Vintage Time Parts","version":"1.0","type":"link"}