BOREL Mainspring 4219-J for ETA caliber 1070, 1170 - Alloy

BOREL Mainspring 4219-J for ETA caliber 1070, 1170 caliber movements plus perhaps similar ébauche watches, white alloy. See images 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.