Seiko kronografi na sniženju

[HADzI DALIBOR]

Interesantan mehanizam imaju ovi hronografi. U pitanju je mecaquartz 6T63. U njemu su 2 steper motora umjesto 4 ili 5. Hronograf modul je mehanički - kao kod mehaničkih mehanizama!

[tiha]

Ajd da malo pojasnimo, da ne bi neko mislio da je ovo nesto kao neki Fossil-i:
Mecaquartz chronographs use movements of a hybrid construction. These movements join a quartz-regulated electronic timekeeping engine and a mechanical chronograph module. ...
Quartz watches with an "analog" display use a small stepper motor to drive the watch hands. Mecaquartz movements use a second, separate stepper motor to drive the chronograph module. A gear-train translates the motor drive into movement of the chronograph hands.
The chronograph motor operates at a higher frequency than the one-tick-per-second of the timekeeping motor. This gives the chronograph a smoother sweep and allows the measurement of intervals with greater precision than full seconds. The reset lever operates on a heart-shaped cam so reset is mechanical and instantaneous.
By way of contrast, a conventional quartz chronograph uses separate motors to drive each counter on the dial. ...

Preuzeto sa: Mecaquartz Chronographs