Frequency of crystal oscillator

32,768 Hz (Hz = Hertz...Cycles per second)


Annual rate ±10 seconds

Operational temperature range

Between –10 °C and +60 °C

Driving system

Step motor

IC (Integrated Circuit)

C-MOS-IC: 1 piece

When used on the wrist within a normal temperature range (between 5 °C and 35 °C) for approximately 8 hours per day. Monthly rate of loss/gain may amount to approximately 2 seconds depending on the condition of use.

The specifications are subject to change without prior notice due to product improvement.