Elgin Factory Minute Wheel for grade 717, 719, 721 - new in envelope

Elgin factory minute wheel for grade 717, 719, 721 which are Direct Read movements, Factory No. 6876, refill 717 - 289, in open envelope. This one has some damaged teeth...which I'm glad I noticed. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. If you need a part for a vintage watch I likely have it so feel free to inquire. Images do a pretty good job of representing the item.