Seiko 5d88 manual Power Source Rechargeable battery, Specifications, Batteries for watches

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POWER SOURCE (Rechargeable battery)

English

This watch requires no periodic battery replacement as it is powered by the

 

 

exclusive rechargeable battery, which is completely different from conventional

 

batteries for watches.

 

This exclusive rechargeable battery is an environmentally friendly, clean energy

 

storage device.

CAUTION

Never install a silver oxide battery for conventional watches in place of the rechargeable battery, which can generate heat that can cause bursting or ignition.

NOTES ON OVERHAUL

The watch is a precision device. If the parts run short of oil or get worn out, the watch may stop its operation or lose time. We recommend you have the watch overhauled periodically to keep it running accurately.

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 between 5° C and 35° C)

3

Operational temperature range

–10° C ~ +60° C

4

Driving system

Step motor: 2 pieces

5

Display system

24-hour, hour, minute, second, date, day of the

 

 

week, and moon phase.

 

 

Power reserve display, power generation status

 

 

display, and generated power amount display

6

Rechargeable battery

Button type, 1 piece

7

Duration of charge

Approximately 1 month (if the watch is fully

 

 

charged)

8

Additional functions

Overcharge prevention function

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 improvements.

English

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Contents Cal D88 Contents Features Display and Button OperationHOW to Charge and Start the Watch Crown with Driving WheelOnes Turn the crown clockwise repeatedly to charge the watchHow to read the direct drive indicator EnglishPower reserve indicator Real-time power indicatorMaximum 6 hours of generated power can be displayed Can be displayedHow to read the direct drive indicator while charging Indicator hand starts movingContinue to turn the crown. The indicator hand moves upward Total amount of power reserve after approximately 4 secondsDisplay TIME/CALENDAR Setting How to set the date and day English Push the crown back in to the normal positionHow to set the moon phase EnglishHow to reset the built-in IC Improper FunctionAutomatic Hand Alignment Power Source Rechargeable battery SpecificationsBatteries for watches Storage device