Rezista Mainspring No. 122 for Benrus L movements - steel

Rezista No. 122 steel mainspring for Benrus L movements, and quite likely many others. See images for precise mainspring specifications. I likely ave 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.