Elgin Factory stem / winding arbor #6363 for 19/0s Grade 660 movements

One Elgin factory No. 6363 stem for 19/0s grade 660, new in packaging. 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.