Sandsteel Mainspring - Waltham 6/0s Jewel Series 1912 Factory No. 2235 - Steel

Sandsteel Mainspring for Waltham 6/0s Jewel Series 1912 Model, No. 2235, Steel, new in envelope. See image for precise mainspring specifications. These were available in a couple of different strengths and those that I can supply can be found in the drop-down list. I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.