Elgin Factory Mainspring for 0s No. 825 - Steel

Elgin factory mainspring #825 for 0s movements, steel, new in likely quite frail envelope. Has the typical Elgin DB&H end. These were available in a couple of different strengths and those that I can supply can be found in the drop down list. I likely have several of these so the one you get may have a different envelope from what is shown. Nearly all Elgin mainsprings came in a very sticky grease and must be cleaned thoroughly before use. See images for further details. 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.