Newall Security Mainspring #557 for 6/0s Waltham Jewel Series No. 2226 - Steel

Newall Security mainspring #557 for Waltham 6/0B & Jewel Series Movements, Factory No. 2226, steel, new in envelope. See images for further details. I specialize is 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.