Marco Mainspring #2827 for ETA 705, Font 8244, Gruen 169, 181, 183 - Steel

Marco No. 2827 steel mainspring for ETA 705, Font 8244, Gruen 169, 181, 183 caliber movements, and perhaps even more as well, 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 a pretty good job of representing the item.