Nivaflex Unbreakable Mainspring for Bulova 17AE - Alloy

Nivaflex Unbreakable Mainspring for Bulova caliber 17AE movements plus perhaps other similar ébauche movements as well, 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 a pretty good job of representing the item.