{"product_id":"steel-mainspring-for-18s-zenith-pocket-watch-steel","title":"Steel Mainspring for 18s Zenith Pocket Watch - Steel","description":"\u003cp\u003eSteel\u003cstrong\u003e \u003c\/strong\u003eMainspring for 18s \u003cstrong\u003eZenith \u003c\/strong\u003ePocket Watch movements, DB\u0026amp;H end that is unique to Zenith, new in envelope. Measures Dennison ~24 x 4 which is suitable several Zenith 18s movements from well before 1930. Mainsprings come from a jeweler in Canada which makes sense since Zenith Pocket Watches were common in Canada RR service. See images for further details. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.\u003c\/p\u003e","brand":"Zenith","offers":[{"title":"Default Title","offer_id":49158840844596,"sku":"PMS-ZENITH18SS-06","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0849\/3341\/1124\/files\/2026-06-1414.56.13.jpg?v=1781474827","url":"https:\/\/www.vintagetimeparts.com\/products\/steel-mainspring-for-18s-zenith-pocket-watch-steel","provider":"Vintage Time Parts","version":"1.0","type":"link"}