BESTFIT Mainspring WL5 for Longines 8LN & Wittnauer 6FF, 6FS, 6FA - Alloy

BESTFIT Mainspring WL5 for Longines caliber 8LN and Wittnauer caliber 6FF, 6FS, 6FA plus perhaps similar ébauche watches, white alloy, new in possible replacement envelope. See images for precise mainspring specifications. 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 so I usually have whatever you might need and all watch parts are unconditionally guaranteed. Images do a pretty good job of representing the item.