Vigor Open Loop Clock Mainspring - 36 x 3½ x 19½" Long - L 450/5

Vigor Clock Mainspring, OPEN LOOP End – Dennison 36 x 3½ x 19½″ Length, P/N L 450/5, steel, new in envelope. See images for precise mainspring specifications. 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.