Tru-Time Mainspring for Bulova 10AN, 10AE, 10AB, 10AR, 10AM, 10AX - Steel

Tru-Time mainspring for Bulova caliber 10AN, 10AE, 10AB, 10AR, 10AM, 10AX movements, and perhaps others too, 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 an adequate job of representing the item.