1965 L SCHWAB SA SWISS CAL 8 A 7J SWIZA 8 CLOCK 4 PARTS

This is a 1965 L SCHWAB SA SWISS 7 JEWELS CAL 8 A UNADJUSTED SWIZA Clock--no idea what is wrong with this little clock. The balance turns freely and starts to turn on its own from moving it but it will not run. Movement measures 49mm; 52mm across dial. T are no additional components (no case, crystal etc).