Marco Mainspring #184 for 5/0s & 6/0s Elgin Factory No. 2890 - Steel

Marco mainspring #184 for Elgin 5/0s & 6/0s movements, Factory No. 2890, steel, new in envelope. I likely have several of these so the one you get may differ slightly from the images. I specialize in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.