{"product_id":"vigor-tongue-end-clock-mainspring-for-muller-caliber-26-21-x-3-x-25-long-t-300-4","title":"Vigor TONGUE End Clock Mainspring for Muller caliber 26 - 21 x 3½ x 25\" Long - T 300.4","description":"\u003cp\u003e\u003cstrong\u003eVigor \u003c\/strong\u003eClock Mainspring, TONGUE End – Dennison 21 x 3½ x 25\" in Length, P\/N T 300.4, GR Ref 30-20 C 62, 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 \u0026amp; clock parts and all parts are unconditionally guaranteed. Images do a pretty good job of representing the item.\u003c\/p\u003e","brand":"Vigor","offers":[{"title":"Default Title","offer_id":49043052691764,"sku":"CMS-VIGCT3004-02","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-02-1510.01.07.jpg?v=1771179069","url":"https:\/\/www.vintagetimeparts.com\/products\/vigor-tongue-end-clock-mainspring-for-muller-caliber-26-21-x-3-x-25-long-t-300-4","provider":"Vintage Time Parts","version":"1.0","type":"link"}