FIELD: electrical engineering. SUBSTANCE: clock includes power source, quartz generator unit transforming energy of source into standard pulses of control over stepping motor, mechanism for switching hands, stepping motor transforming energy of control pulses into intermittent rotation of rotor, reduction gear set in motion with rotor of stepping motor and transmitting rotation to hands. Reduction gear is mounted between two reduction bridges so that reduction gear and two bridges form independent assembly unit. EFFECT: enhanced reliability and accuracy of clock. 2 dwg
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