FIELD: mechanisms.
SUBSTANCE: invention relates to chronograph mechanism (1), containing resonator (3) with balance-spring (5), installed between bridge (2) and bottom plate (4), wherein balance (7) is made of ferromagnetic material. According to invention chronograph mechanism includes balance spring magnetic polarization device (15), made with possibility to maintain preset of balance spring (7) polarization state and including permanent magnetization device, which generates magnetic field in balance spring plane so, that balance spring (7) in the absence of external magnetic field was in state of complete or almost complete magnetic saturation.
EFFECT: invention relates to watches industry.
11 cl, 1 dwg
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