BOREL Mainspring 3038-Z for Font caliber 72 - Alloy

BOREL Mainspring 3038-Z for Font caliber 72 movements and countless variants, plus perhaps PUW 360 (someone thinks so) and other similar ébauche watches, white alloy, new in envelope. See image 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.