Marco Mainspring #3372 for Bulova 12B, Junghans 89 Alarm - Steel

Marco mainspring #3372 for Bulova caliber 12B, Junghans caliber 89 Alarm movements plus perhaps others. See images for precise mainspring specifications. I specialize is 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.