BOREL Mainspring S1526-CC for LeColtre caliber 437, 438 - Alloy

BOREL Mainspring S1526-CC for LeCoultre caliber 437, 438 movements plus perhaps similar ébauche watches (perhaps Longines 428), 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.