BESTFIT Mainspring 24V for Gruen caliber 380, 381, 385, 386 Pocket Watch - Alloy

BESTFIT Mainspring 24V for Gruen caliber 380, 381, 385, 386 plus perhaps similar ébauche watches, white alloy, new in envelope. See image 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.