TEMP-RITE Mainspring for Bulova caliber 6AP, 6B, 6BB, 6BBI & ETA 750, 751 - Steel

TEMP-RITE mainspring for Bulova caliber 6AP, 6B, 6BB, 6BBI, AS 427 & ETA 750, 751 plus perhaps others, steel, 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.