X-cut quartz resonator using non overlaping electrodes

A flexural-mode quartz crystal vibrator comprising a cut quartz crystal plate, said plate being X-cut and having X, Y and Z electrical, mechanical and optical axes defining a Y' axis in said X-axis plane, said X-cut plate being further rotated about said Y' axis by 70.degree. to 90.degree. or -70.degree. to -90.degree., said cut quartz crystal plate defining a flexural mode quartz crystal vibrator having at least one elongated vibratory portion including first and second opposed substantially planar surfaces and first elongated electrodes disposed on said first surface, said first electrode being adapted to be referenced to a first polarity potential, and a further elongated electrode adapted to be referenced to a potential having a polarity opposite to the polarity of said first electrodes and disposed on said second surface so that the portion of the respective electrodes on said vibratory portion are positioned on the respective surfaces out of overlapping relation.