BESTFIT Mainspring for Eterna 8-day Car Clock TE280-1

Bestfit System #77 Mainspring for Eterna 8-Day Car Clock, T end, No. TE280-1, steel, new in stained envelope. See images for precise mainspring specifications. I find these very infrequently so grab them when you can. 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