HR Mainspring A767 for 22s 8-day Waltham No. 2245 - Steel

HR Mainspring A767 for 22s Waltham 8 Day, Factory No. 2245, steel, new. See images for precise mainspring specifications. Found in many different applications, including car clocks, aircraft clocks, travel clocks, deck clocks, ships clocks, and really big pocket watches. I likely have several of these so the one you get may differ slightly from the images. Images do a pretty good job of representing the item.