Marco Mainspring #3155 for Omega Caliber 26.5T3 - Steel

Marco Mainspring No. 3155 for Omega caliber 26.5T3 movements and perhaps others as well, steel, new in envelope. See images for precise mainspring specifications. I likely have several of these so the one you get may differ sightly from the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.