Horol.
an extremely accurate electronic movement utilizing the natural frequency of vibrations of a quartz crystal to regulate the operation of the timepiece (quartz clock or quartz watch) .
Horol.
an extremely accurate electronic movement utilizing the natural frequency of vibrations of a quartz crystal to regulate the operation of the timepiece (quartz clock or quartz watch) .
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012