VIGOR Clock Mainspring for EMES 20 - 23 Alarm No. T220-2

VIGOR Clock Mainspring for German EMES caliber 20 to 23 & 37 clocks, ALARM side spring, Regular tongue end, No. T220-2, 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