BESTFIT Clock TIME Mainspring for Semca 20 Alarm Clock No. T450-2

Bestfit System #77 Mainspring for Semca 20 Alarm clocks, TIME side spring, Regular tongue end, No. T450-2, 1940’s or newer, steel. See image 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