Specifications

English

GUIDELINE OF CHARGING TIME/ACCURACY

Environment/Lightsource (lux)

V157/ V158

(minutes)

(hours)

Generalofces/Fluorescentlight(700)

110 25 -

30W20cm/Fluorescentlight(3000 ) 30 6 120

Cloudyweather/Sunlight(10000) 10 2 35

Fairweather/Sunlight(100000) 2 0.4 9

Expected life per charge from full

charge to stoppage

10 months

Loss/gain (monthly rate)

Less than 15 seconds when the watch is worn on your wrist at

anormaltemperaturerange(5ºCto35ºC

)

Operational temperature range -10ºCto60ºC

A: Time to charge 1 day of power

B: Time required for steady operation

C: Time required for full charge

The above table provides only a general

guideline.

 The watch operates while charging electricity by converting light received on the dial to

electricalenergy.Itcannotproperlyoperateunlesstheremainingenergyissufcient.Place

orstorethewatchinalocationreceivinglightetc.,tosufcientlychargeelectricity.

•

When the watch is stopped or the second hand starts moving at 2-second intervals (for

models with a second hand), charge the watch by exposing it to light.

•

The time required for charging the watch varies depending on the calibres. Check the calibre

of your watch engraved on the back cover.

•

It is recommended that the watch be charged for as long as the charging time "B" to assure

the stable movement of the watch.