Development of a Watch Equipped with Electrostatic Induction Generator and Motor

Abstract

  Development of an electrostatic induction generator began in 2009. Since it was known that the electrostatic induction mechanism had the advantage of being highly resistant to magnetic fields, the development of a motor was also initiated in 2015. As a result, Cal.NS30 movement, equipped with an electrostatic induction generator/motor, was developed. ACCUTRON SPACEVIEW 2020, equipped with this movement, was launched to commemorate the 60th anniversary of the release of the “ACCUTRON”. The technical outline of the Cal.NS30 movement is reported as below.