Quick Fit stem for Wittnauer for caliber 10TN - new in envelope

ONE Quick Fit stem for Wittnauer caliber 10TN and perhaps other as well, Quick Fit System # 66-10, new in envelope.  I likely have several of these so the one you get may differ slightly from the images. I specialize in hard to find watch parts and all watch parts are unconditionally guaranteed. If you need a part for a Swiss watch I likely have it so feel free to inquire. Images do a pretty good job of representing the item.