BESTFIT Mainspring 314E for Bulova 3AF, Gruen 978 - Alloy

BESTFIT Mainspring 314E for Bulova 3AF, Gruen 978 caliber movements 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 an adequate job of representing the item.