Hamilton Factory Mainspring No. 15 for 18s - Steel

Hamilton Factory Mainspring No.15 for 18s Hamilton movements, T end, steel, new in possibly frail envelope. See image for further details. These were available in several strengths and those that I can supply are shown in the drop-down list. I specialize is hard to find watch parts so I usually have whatever you might need and all watch parts are unconditionally guaranteed.Images do a pretty good job of representing the item.