NEWALL Mainspring #1609 for Bulova 6AH, 6AN, 6AU, 6AZ, 6BK, 6BZ, 6BS, 6BU - Steel

NEWALL Mainspring #1609 for Bulova caliber 6AH, 6AN, 6AU, 6AZ, 6BK, 6BZ, 6BS, 6BU  and ETA 761 plus perhaps other similar ébauche watches, 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.