An electronically controlled mechanical watch , comprising: A mechanical energy source ; a time indication device including a time indication wheel train configured to indicate a time using a transmitted torque of the mechanical energy source; a circuit board on which a crystal oscillator , an electronic control circuit configured to adjust a rotation speed of the time indication wheel train based on an oscillation frequency of the crystal oscillator , and a plurality of logical regulation setting patterns are disposed; and wherein the electronic control circuit includes: an oscillation circuit configured to oscillate the crystal oscillator ; a frequency divider circuit configured to divide an oscillation signal output from the oscillation circuit and output a reference signal (fs1); characterized in that the electrically controlled mechanical timepiece further comprises a rotary switch including a conduction portion configured to conduct to the plurality of logical regulation setting patterns , the rotary switch being configured to rotate with respect to the circuit board to select a logical regulation setting pattern, of the plurality of logical regulation setting patterns, conducting to the conduction portion, and in that the electronic control circuit includes a logical regulation circuit configured to control the frequency divider circuit based on a conduction state of the conduction portion and the logical regulation setting pattern. A mechanical energy source ; a time indication device including a time indication wheel train configured to indicate a time using a transmitted torque of the mechanical energy source; a circuit board on which a crystal oscillator , an electronic control circuit configured to adjust a rotation speed of the time indication wheel train based on an oscillation frequency of the crystal oscillator , and a plurality of logical regulation setting patterns are disposed; and wherein the electronic control circuit includes: an oscillation circuit configured to oscillate the crystal oscillator ; a frequency divider circuit configured to divide an oscillation signal output from the oscillation circuit and output a reference signal (fs1); characterized in that the electrically controlled mechanical timepiece further comprises a rotary switch including a conduction portion configured to conduct to the plurality of logical regulation setting patterns , the rotary switch being configured to rotate with respect to the circuit board to select a logical regulation setting pattern, of the plurality of logical regulation setting patterns, conducting to the conduction portion, and in that the electronic control circuit includes a logical regulation circuit configured to control the frequency divider circuit based on a conduction state of the conduction portion and the logical regulation setting pattern. an oscillation circuit configured to oscillate the crystal oscillator ; a frequency divider circuit configured to divide an oscillation signal output from the oscillation circuit and output a reference signal (fs1); characterized in that the electrically controlled mechanical timepiece further comprises a rotary switch including a conduction portion configured to conduct to the plurality of logical regulation setting patterns , the rotary switch being configured to rotate with respect to the circuit board to select a logical regulation setting pattern, of the plurality of logical regulation setting patterns, conducting to the conduction portion, and in that the electronic control circuit includes a logical regulation circuit configured to control the frequency divider circuit based on a conduction state of the conduction portion and the logical regulation setting pattern. <EOS>