Seiko 4F32 Manual - Page 13
Caution
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English CAUTION q Never short-circuit, heat or otherwise tamper with the battery, and never expose it to fire. The battery may burst, become very hot or catch fire. q The battery is not rechargeable. Never attempt to recharge it, as this may cause battery leakage or damage to the battery. 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 Battery SEIKO CR1612, 1 piece (Cal. 4F32) SEIKO CR2412, 1 piece (Cal. 8F32 and 8F33) 6 Battery life indicator 7 IC (Integrated Circuit C-MOS-LSI, 1 piece * The specifications are subject to change without prior notice for product improvement. 13