Three Elgin Factory stems #5018 for 20/0s watches

Pack of three Elgin factory No. 5018 stems for 20/0 model bracelet watches (512-273), new in packaging. In the Elgin factory vernacular these are called winding arbors, but everyone else just calls them stems. See images for further details. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. If you need a part for an American watch I likely have it. Images do a pretty good job of representing the item.