Elgin Factory stem / winding arbor for 5/0s Grade 870

One Elgin factory stem for 5/0s Grade 870 movements, new in packaging. These are PUW 1260 based 17-jewel, sweep second calendar movements so this will fit movements other than just the specified Elgin. In the Elgin factory vernacular these are called winding arbors, but everyone else just calls them stems. These are long-hub ones in contrast to the male/female ones used in waterproof watches. 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.