Samson Mainspring No. 10022 for Brac 13 ligne caliber 37, 39-42 - Steel

Samson No. 10022 steel mainspring for Brac 13 ligne caliber 37, 39, 40, 41 & 42 pin-lever movement and perhaps others, 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 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.