Long-Life Mainspring #871 for Waltham 6/0s No. 2226 - Steel

Long-Life Mainspring #871 for Waltham 6/0s movements, Factory No. 2226, steel, new in frail envelope. See image for further details and precise mainspring specifications. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item