Elgin Factory Mainspring for 16s No. 2325 - Steel

Elgin Factory Mainspring for 16s movements, Factory No. 2325, steel, new in frail envelope. This is an uncommon mainspring, difficult if not impossible to find as a factory mainspring. Elgin mainsprings are usually coated in sticky grease and must be cleaned before use. I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.