Marco Mainspring #3051 for Bulova 8AH, 8AD, ETA 1000, 1220, Gruen 126, 127, 179 - Steel

Marco Mainspring No. 3051 for Bulova  8AH, 8AD, ETA 1000, 1220, Gruen 126, 179, Wittnauer 9W, 9WN caliber movements plus perhaps others, steel, 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. Images do a pretty good job of representing the item.