BOREL Mainspring A5529-Y for Felsa caliber 415, 690, 692, 1560 - Alloy

BOREL Mainspring A 5529-Y for Felsa caliber 415, 692, 692, 1560 caliber movements plus perhaps similar ébauche watches, with detached bridle, white alloy, new in 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.