Waltham Factory Mainspring for 8¾ ligne No. 2242 - Steel

Waltham Factory Mainspring for 8¾ ligne movements, Factory No 2242, steel, new in envelope. These were available in several strengths and those that I can supply are shown in the drop-down list. I specialize in hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed. See image for further details. Images do a pretty good job of representing the item.