Seiko 8F56 Manual - Page 22

Specifications

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English SPECIFICATIONS 1 Frequency of crystal oscillator 196,608 Hz (Hz = Hertz ... Cycles per second) 2 Loss/gain (Annual rate 20 seconds when used on the wrist approximately 12 hours a day, at normal temperature range (5° C ~ 35° C) (41° F ~ 95° F) * Monthly rate of loss/gain may amount to approximately 4 seconds depending on the condition of use. 3 Operational temperature range 10° C ~ +60° C (14° F ~ 140° F) 4 Driving system Step motor for the time indication Ultrasonic motor for the calendar indication 5 Display system Time Hour, minute, second and 24-hour hands (Some models do not have a 24-hour hand) Date Displayed in numerals. 6 Battery SEIKO CR1612, 1 piece (Cal. 4F56) SEIKO CR2412, 1 piece (Cal. 8F56) 7 Battery life indicator 8 IC (Integrated Circuit C-MOS-LSI, 1 piece 9 Magnetic resistance 4,800 A/m (60 gauss) * The specifications are subject to change without prior notice for product improvement. 22

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22
English
SPECIFICATIONS
1
Frequency of crystal oscillator
..........................
196,608 Hz (Hz = Hertz … Cycles per second)
2
Loss/gain (Annual rate)
......................................
±
20 seconds when used on the wrist approximately
12 hours a day, at normal temperature range (5
°
C ~
35
°
C) (41
°
F ~ 95
°
F)
* Monthly rate of loss/gain may amount to
approximately 4 seconds depending on the condition
of use.
3
Operational temperature range
.........................
–10
°
C ~ +60
°
C (14
°
F ~ 140
°
F)
4
Driving system
..................................................
Step motor for the time indication
Ultrasonic motor for the calendar indication
5
Display system
Time
.............................................................
Hour, minute, second and 24-hour hands
(Some models do not have a 24-hour hand)
Date
.............................................................
Displayed in numerals.
6
Battery
..............................................................
SEIKO CR1612, 1 piece (Cal. 4F56)
SEIKO CR2412, 1 piece (Cal. 8F56)
7
Battery life indicator
8
IC (Integrated Circuit)
........................................
C-MOS-LSI, 1 piece
9
Magnetic resistance
..........................................
4,800 A/m (60 gauss)
* The specifications are subject to change without prior notice for product improvement.