Loop End Clock Mainspring – 7.0mm x .23mm x 30″ Long - No. 80-446

Closed Open Loop End Clock Mainspring – 7.0mm x .23mm x 30″ Long, P/N 80-446, steel, new in box. Closed loop as most larger clocks use. See images for further details. 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