PM Clock TIME Mainspring CS-567 for Muller Caliber 36 Alarm Clock

PM Packaged Material Mainspring for Muller Caliber 36 Alarm clocks 1950’s or newer, TIME side spring, Regular tongue end, No. CS-567, GR Ref 34-22 C 46, steel, new in open envelope. See image for precise mainspring specifications (Dennison length is wrong, MM  is correct). 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