Caliber no.




Hour, minute, seconds, power reserve indicator, independent hour-hand adjustment function (For Cal. 9R01 only).

Frequency of crystal oscillator

32,768 Hz


Average monthly rate of ±10 seconds
(equivalent to daily rate of ±0.5 second) ※1

Average monthly rate of ±15 seconds
(equivalent to daily rate of ±1 second) ※1

Operational temperature range

−10°C to +60°C ※2

Driving system

Manual winding type

Hand movement

Glide motion

Continuous operating time

Approx. 192 hours (Approx. 8 days) ※3

Approx. 84 hours (Approx. 3.5 days) ※3

IC (Integrated Circuit)

Oscillator, frequency divider, and spring drive control circuit (C-MOS-IC): 1 piece

Number of jewels

56 jewels

39 jewels

The average rate is estimated in a condition when the watch is worn on your wrist within a temperature range between 5°C and 35°C.

Under a low-temperature condition (below 0°C), always keep at least one-sixth of the watch power shown by the power reserve indicator.

When the power reserve indicator shows the power supplied by the mainspring is full, continuous operating time may be shortened depending on the how the product is used.

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