High-precision electronic clock movement and process for adjusting a time base

An electronic clock movement comprising a time base arranged to supply a time signal formed from timing pulses generated at a unit frequency, wherein this time base comprises:

• a clock circuit that supplies clock pulses with a determined clock frequency;
• a frequency divider circuit that receives said clock pulses at a first input and outputs said time signal;
• an inhibition circuit that supplies an inhibition signal to a second input of said frequency divider circuit, wherein this inhibition circuit is arranged so that the inhibition signal causes a first number N of clock pulses per inhibition period to be suppressed in order to adjust the number of clock pulses activating said frequency divider circuit over each inhibition period such that said unit frequency comes closest to a reference unit frequency;
• wherein said clock frequency is provided in a certain frequency range higher than a reference frequency, which would allow a reference unit frequency to be obtained at the output of the frequency divider circuit in the absence of inhibition,
• wherein each inhibition period is divided into a plurality K of sub-periods, and wherein the inhibition circuit, for causing the suppression of N clock pulses, is arranged so as to suppress in each sub-period a second number N1 of clock pulses corresponding to the result of the integral division of the first number by the number of sub-periods (N1=INT[N/K]) and additionally in each inhibition period a third number N2 of clock pulses equal to the remainder of said integral division (N2=N modulo K).