Elgin DuraPower Mainspring for 5/0s movements #6097 - Alloy

Elgin Factory DuraPower Mainspring Factory No. 6097 for 5/0s movements, alloy, new in envelope. See image for specifications. These were offered in several strengths and the ones I can supply are show in the drop-down list. 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