Rezista Mainspring No. 244 for Benrus BA, BB, Bulova 10BA, 10BE, 10W, 11ZE - Steel

Rezista No. 244 steel mainspring for Benrus BA, BB, Bulova 10BA, 10BE, 10W, 11ZE, ETA 900, 1061, 1080, Felsa 71, 73 caliber movements, and quite likely many others, 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. plethora