179023 ⎘
Mechanisms for stabilising frequency; Compensation of mechanisms for stabilising frequency for the effect of variations of atmospheric pressure
DEVICE FOR AUTONOMOUS ADJUSTMENT OF THE ACTIVE LENGTH OF A SPIRAL
#2HOROLOGICAL REGULATING MEMBER WITH FLEXIBLE GUIDE PROVIDED WITH MEANS FOR COMPENSATING FOR PRESSURE
#3Mechanical clock movement with magnetic escapement
#4Resonator with reduced sensitivity to climatic variations
#5Resonator with reduced sensitivity to climatic variations
#6Method for adjusting the chronometry of a timepiece movement intended to operate in a low-pressure atmosphere
#7Ceramic temperature-compensated resonator