Sandsteel Mainspring for Central Watch Co (Benrus) 6/0s - Steel

Sandsteel Mainspring for Central Watch Co 6/0s movements, Hole End, Steel, new in envelope. Central Watch Co. was a secondary watch line produced by Benrus in the 1920s and '30s so it's quite possible these might also fit some Benrus Models. See image for precise characteristics. I specialize in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Some of the envelopes are pretty distressed but the contents are intact. Images do a pretty good job of representing the item.