Marco Mainspring #2926 for A. Michel caliber 390 thru 395 - Steel

Marco steel mainspring No. 2926 for A. Michel caliber 390, 391, 392, 393, 395 and perhaps others, new in possibly stained 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 a pretty good job of representing the item.