BOREL Mainspring 3018-G for Gruen 270, 271, 272 - Alloy

BOREL Mainspring 3018-G for Gruen caliber 270, 271, 272 plus perhaps other similar ébauche watches, white alloy, new in envelope. See images for precise mainspring specifications. 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 an adequate job of representing the item.