Pennant Mainspring for 16s Waltham Mainspring No. 2208 - Steel

Pennant Mainspring for 16s Waltham Pocket Watches, Factory No. 2208, new in envelope. See images for further details. 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 and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.