Specifications

Cal.	5R65	5R66
1. Features	3 hands (hour, minute and seconds hands), date display, power reserve indicator	3 hands (hour, minute and seconds hands), 24-hour hand, date display, power reserve indicator
2. Frequency of crystal oscillator	32,768 Hz (Hz = Cycles per second)
3. Loss/gain (daily rate)	±15 seconds (±1 second per day) (Only if worn on the wrist in a temperature range of 5°C to 35°C)
4. Operational temperature range	−10 °C to +60 °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.
5. Driving system	Automatic winding type with manual winding mechanism
6. Hand movement	Glide motion
7. Duration	Approx. 72 hours (Approx. 3 days) When the power reserve indicator shows fully wound. Continuous operating time may be shortened depending on how the product is used.
8. IC (Integrated Circuit)	Oscillator, frequency divider, and spring drive control circuit (C-MOS-IC): 1 piece
9. Jewels	30 jewels

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