HR Superior Hole End Clock Mainspring - 3/8" x .009 x 39¾" Long - No. 80-956

HR Superior Clock Mainspring, Hole End – 3/8″ Width, .009 Strength/Thickness, 39¾″ Length, P/N 80-956, steel, new in package. See images for further details. I likely have several of these so the one you get may differ slightly from the images. I specialize is hard to find watch & clock parts and all parts are unconditionally guaranteed. Images do a pretty good job of representing the item