HR Mainspring SA746 for Waltham 7¼ ligne No. 2238 / 2274 - Alloy

HR mainspring SA746 for Waltham for 7¼ ligne movements, Factory No. 2238, alloy, new in envelope. See images for precise mainspring specifications. 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.