Miracle Power Mainspring for Wittnauer caliber 9W - 9WN - Steel

Miracle Power No. 1543 steel mainspring for Wittnauer 9W - 9WN movements and perhaps others, new in envelope. The 1543 is a Tongue end version so make sure that's the one you need.. See images for precise mainspring specifications. I specialize in 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.