HR Mainspring SA750 for Waltham 4 ligne movements No. 2240 / 2260 - Alloy

HR mainspring SA750 for Waltham for4 ligne movements, Factory No. 2240 / 2260, alloy, 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. See image for further details. Images do a pretty good job of representing the item.