Newall Security Mainspring #525 for 16s Waltham Factory No. 2247 - Steel

Newall Security Mainspring #525 for 16s Waltham Movements, Factory No. 2247, DB&H 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 so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do an adequate job of representing the item.