> SPECIFICATIONS > Specifications




1. Features

Main time with three hands (hour, minute, and seconds hands), 24-hour hand, date display, stopwatch hands (1/5-second and minute)

2. Frequency of crystal oscillator

32,768 Hz (Hz= Hertz, cycles per second)

3. Loss/gain (Monthly rate)

Loss/gain ±15 seconds in a monthly rate (Except the cases when the watch is used without time adjustment by receiving a radio signal and when it is worn on the wrist within a normal temperature range between 5 °C and 35 °C)

4. Operational temperature range

Between −10 °C and +60 °C

5. Driving system

Step motor (Hour and minute hands/24-hour hand, small seconds hand, date, stopwatch second hand, stopwatch minute hand)

6. Power source

Secondary battery, 1 piece

7. Duration

Approximately 6 months (when the battery is fully charged and the power save is not activated)

If Power Save is activated after it is fully charged, the watch continues to run for approximately 2 years at maximum.

8. Radio signal reception function / radio signal transmitting station

Automatic reception (Before 2:00 AM, 3:00 AM and 4:00 AM)

It varies depending on the radio signal receiving condition.

After radio signal reception, the watch will start to work depending on the quartz movement until the next reception.

Manual reception is available.

9. Integrated circuit

Oscillator, frequency divider and driving circuit C-MOS-IC, 3 pieces

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