Fitrite Mainspring #600B for Bulova caliber 17A, 17AA, 17AAL, 17AAT, 17T - Steel

Fitrite Mainspring No. 600B for Bulova caliber 17A, 17AA, 17AAL, 17AAT, 17T movements plus perhaps other similar ébauche watches, steel, new in frail, almost tissue paper thin envelope. 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.