Elgin DuraPower Mainspring No. 6098 for 5/0s & 6/0s - Alloy

Elgin DuraPower Factory Mainspring No.6098 for 5/0s & 6/0s Elgin movements, D.B. & H end, alloy, new in envelope. I likely have quite a few of these so the one you get may differ slightly from the images. These are available in a couple of different strengths, and those that I can supply are shown in the drop-down list. See images for precise characteristics. I specialize is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a marginally adequate job of representing the item.