A time keeping device of an electric timepiece comprising one motor that can
rotate
in the forward direction and the reverse direction, a branch mechanism, and a plurality
of wheel trains that are branched by the branch mechanism, wherein the motor is
rotated in the forward direction to drive one wheel train thereby to carry out
a mechanical display, and is rotated in the reverse direction to drive the other
wheel train thereby to carry out another mechanical display. The time keeping device
further comprises a merge mechanism in addition to the branch mechanism, and a
plurality of wheel trains that are branched by the branch mechanism and are merged
by the merge mechanism. The motor is rotated in the forward direction to drive
one wheel train thereby to carry out a mechanical display, and is rotated in the
reverse direction to drive the other wheel train thereby to carry out another mechanical display.
