1. A TIMEPIECE INTERMITTENT DRIVE MECHANISM FOR CONVERTING OSCILLATORY INTO INTERMITTENT UNIDIRECTIONAL ROTARY MOTION COMPRISING AN OSCILLATORY BALANCE WHEEL, A BALANCE SWING PIN FIXED TO SAID BALANCE WHEEL, TWO IDENTICAL CO-PLANAR STAR WHEELS HAVING TEETH SPACED TO PREVENT DRIVING CONTACT THEREBETWEEN WHILE ALLOWING EACH TOOTH ON ONE WHEEL TO PASS BETWEEN ADJACENT TEETH ON THE OTHER WHEEL AND EACH TOOTH HAVING SUFFICIENT PROJECTION TO BE ENGAGED BY SAID SWING PIN, A SHAFT FOR EACH STAR WHEEL AND TWO INTERMESHING TIMING GEARS OF UNITARY GEAR RATIO,