HR Superior Loop End Clock Mainspring - 1/4" x .013 x 24" Long - No. 80-501

HR Superior Clock Mainspring, Loop End – 1/4″ Width, .013 Strength/Thickness, 24″ Length, P/N 80-501, steel, new in envelope. See images for further details. I specialize is hard to find watch & clock parts and all parts are unconditionally guaranteed. Images do an adequate job of representing the item.