NuTemper Mainspring No. 238 for Benrus A movements - steel

NuTemper No. 238 steel mainspring for Benrus caliber A movements, and quite likely others, steel, 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.