BESTFIT Mainspring WL1 for Longines caliber 4LL & Wittnauer 5JH - Alloy

BESTFIT Mainspring WL1 for Longines caliber 4LL & Wittnauer caliber 5JH movements plus perhaps similar ébauche watches, white alloy, new in envelope. See image for precise characteristics. 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.