Hamilton Dynavar 14/0s Factory Mainspring No. 14433 - Alloy

Hamilton Dynavar Factory Mainspring for 14/0s 17 - 19 Jewel Movements (grade 982 is one), Factory No. 14433, alloy, new in likely very frail 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 is hard to find watch parts and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.