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SPECIFICATIONS
1 Frequency of crystal oscillator .......................... 32,768 Hz (Hz = Hertz … Cycles per second)
2 Loss/gain (Monthly rate) ................................... Less than 15 seconds at normal temperature range (5°
C ~ 35° C) (41° F ~ 95° F)
Accuracy of the alarm ....................................... ±5 minutes
3 Operational temperature range ......................... –10° C ~ +60° C (14° F ~ 140° F)
4 Duration of watch vibration ............................... 20 seconds for each time
5 Display system
Time ............................................................. 24-hour, hour, minute and second hands
Ultrasonic alarm ........................................... Designated alarm time and indication of alarm
engagement/disengagement
6 Driving system
For the watch ............................................... Step motor, 1 piece
For the ultrasonic alarm ............................... Ultrasonic motor, 1 piece
7 Battery .............................................................. Miniature silver oxide battery SR43W, 1 piece
8 Battery life......................................................... Approx. 2 years
9 IC (Integrated Circuit) ........................................ C-MOS-IC, 2 pieces
* The specifications are subject to change without prior notice for product improvement.