Seiko 7L22 Manual - Page 15

English SPECIFICATIONS 1 Frequency of crystal oscillator 32,768 Hz (Hz = Hertz ... Cycles per second) 2 Loss/gain (monthly rate Less than 15 seconds (worn on the wrist at normal temperature range 5° C ~ 35° C) (41° F ~ 95° F) 3 Operational temperature range 10° C ~ +60° C (14° F ~ 140° F) 4 Driving system Step motor, 2 pieces 5 Display system Time Hour, minute and second hands Date Displayed in numerals. Stopwatch Minute and 1/5 second hands The stopwatch measures up to 45 minutes in 1/5 second increments. 6 Additional function Energy depletion forewarning function and overcharge prevention function 7 Duration of charge Full charge Approximately 5 months (if the stopwatch is used for 45minutes per day) After the second hand starts moving at two-second intervals Approximately 12 hours (if the stopwatch is not used) 8 KINETIC electricity storage unit Button type, 1 piece 9 IC (Integrated Circuit C-MOS-IC, 1 piece 10 Generating system Miniature AC generator * The specifications are subject to change without prior notice for product improvement. 15