NuVigor Mainspring #333 for 6s Illinois Factory No. 47354 - Steel

NuVigor Mainspring #333 for 6s Illinois, Factory number 47354, steel, new in envelope. See images for precise mainspring specifications. 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 and all watch parts are unconditionally guaranteed. Images do a satisfactory job of representing the item.