Samson Mainspring #9049 for EB caliber 1197 Pin Lever Movement - Steel

Samson steel mainspring #9049 for EB caliber 1197 Pin Lever 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.