Samson Mainspring No. A45 for Felsa caliber 279, 282, Cyma caliber 420 - Steel

Samson No. A45 steel mainspring for Felsa caliber 279, 282 and Cyma / Tavannes caliber 420 automatic movements and perhaps others, new in envelope. 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.