NuVigor Mainspring #164 for 16s Waltham No. 2218 - Steel

NuVigor Mainspring #164 for Waltham 16s movements, Factory No. 2218, hole end, 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 is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.