Sandsteel Mainspring for Howard 10s No. 796 - Steel

Sandsteel Mainspring for Howard 10s movements, Factory No. 796, Tongue end, steel, new in envelope. See images for precise mainspring specifications. These were available in a couple of different strengths and those that I can supply are shown in the drop-down list. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a barley adequate good job of representing the items