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Discussion in 'Electric Horology' started by railwayj, Oct 5, 2014.
Can someone tell me which model this clock movement is?
The photo of your SET slave clock movement appears to be a model AR-2.
The two wires suggest either a simple non-AR or an AR-2. Ar-3 slave movements have three wires.
The additional pivoted armature on the lower end of the electromagnets, when operated, unlocks the movement allowing gravity to pivot the rotor bringing the minute hand straight up to the hour. Hence, I believe it is an AR-2. (Automatic Reset, Two-Wire)
The AR2 and AR2A movements are exactly the same except for this one difference: The AR2 is designed to correct to the 59th minute, and the AR2A is designed to correct to the 60th minute. Actually, the correction impulse is delivered during the previous minute, so at the END of the impulse, the hands will jump to the desired time (either the 59th or 60th minute).