PM Mainspring for Bulova caliber 8AB, 8AN, 8AM, 6FL - ONYX Steel

PM Mainspring for Bulova caliber 8AB, 8AN, 8AM, 6FL and perhaps others, steel, new in envelope. See image 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.