Specifications, Possible | Seiko 7B26 instruction

English

SPECIFICATIONS

1	Frequency of crystal oscillator	32,768 Hz (Hz = Hertz ... Cycles per second)
2	Loss/gain (monthly rate)	Less than ±15 seconds (Except during automatic time setting, when worn on the wrist within
		a normal temperature range between 5ºC and 35ºC.)
3	Operational temperature range	Between -10ºC and +60ºC
4	Driving systems	Step motor (hour and minute hands)
		Step motor (second hand)
		Step motor (calendar)
5	Power source	Secondary battery, 1 piece
6	Duration of operation	Approximately 6 months (Fully charged, the Power Save is not activated)
		*If the Power Save is activated after it is fully charged, the watch continues to
		run for approximately one year and a half.
7	Time setting by receiving a radio signal
		Automatic reception (2:00 AM, 3:00 AM, and 4:00 AM; attempts of reception depend on radio
		wave receiving conditions.)
		*After having received a radio signal, the watch moves depending
		on the quartz movement until the next reception. Manual reception is also
		possible.
8	IC (Integrated Circuit)	Oscillator, frequency divider and driving circuit C-MOS-IC: 3 pieces

English

60 *The specifications are subject to change without prior notice for product improvements.

61

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Seiko 7B26 manual Specifications, Run for approximately one year and a half, Possible

Contents

Page Contents Automatic Time Setting Features Reception on pages NUnable to receive radio signalsRefer to HOW to Check the Reception Result on pages Display and Button Operation Screw Lock Type Crown HOW to USE Button BHOW to Press Button B HOW to Operate Screw Lock Type Crown HOW to Charge the Watch Charging the Solar BatteryStandard Charging Time Second Hand Checking the Charging Status by the MovementEnergy Depletion Forewarning Function Power Save Power Save Function Overcharge Prevention Function Power Source What is a RADIO-CONTROLLED WATCH? Setting the Time by Receiiving Radio SignalAutomatic Hand Alignment Official standard frequency in Germany DCF77 Radio Signal Reception Germany DCF77 JapanJJY United States Wwvb Radio Signal Reception Range Japan JJY United States WwvbRADIO-CONTROLLED Watch on Three seconds or longer Manual Reception Press Button a once HOW to Check the Reception Result Radio Signal Reception RANGE…pages To Enable the Watch to Receive Radio Signals EasilyAppropriate Place to Keep a RADIO-CONTROLLED Watch HOW to USE the Time Zone Adjustment Function Time Zone AdjustmentP40 Time Zone and Time Difference What is a Time ZONE?Time Zones and Time Differences from UTC Daylight Saving Time Time Zone Display Ellingto HOW to Select the Time Zone HOW to SET the Time Zone Summer Time Automatic Change Function HOW to SET Summer Time English Crown cannot be operated Examples of Time Zone Adjustment Watch resumes Its normal movement If it is left untouched USE Button B Manual Time Setting HOW to Manually SET the Time and DateRefer to the Screw Lock Type Crown on Manual Date Setting Abnormal Display or Improper Function HOW to Reset the BUILT-IN IC To USE Button B Preliminary Position Checking and Setting for the Calendar Run for approximately one year and a half SpecificationsPossible Trouble Possible cause Troubleshooting Trouble Possible cause Misalign English