Bedienungsanleitung Seiko 4R39 (Seite 13 von 14) (Englisch)

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English

Problem Possible causes Solutions

The watch

gains/loses time

temporarily.

The watch has been

left in extremely high

or low temperatures

for a

long time.

Normal accuracy will resume when the

watch returns to normal temperature.

The watch was

brought into close

contact with a

magnetic object.

Normal accuracy will resume when the

watch is kept away from close contact

with the magnetic source. If this condition

persists, consult the retailer from whom the

watch was purchased.

You dropped the watch,

hit it against a hard

surface or wore it while

playing active sports.

The watch was exposed

to strong vibrations.

Normal accuracy will not resume. Consult

the retailer from whom the watch was

purchased.

The watch has not

been overhauled for

more than 3 years.

Consult the retailer from whom the watch

was purchased.

The date change at

12 o’clock noon.

AM/PM is not

properly set.

Advance the hands by 12 hours.

The glass is blurred

and the blur persists

for a long time.

Water got inside the

watch due to the

deterioration of the

gasket, etc.

Consult the retailer from whom the watch

was purchased.

•　

For the soluton of troubles other than listed above, contact the retailer from whm the watch was purchased.

ACCURACY OF MECHANICAL WATCHES

● The accuracy of mechanical watches is indicated by the daily rates of one week

or so.

● The accuracy of mechanical watches may not fall within the speciﬁed range of

time accuracy because of loss/gain changes due to the conditions of use, such as

the length of time during which the watch is worn on the wrist, arm movement,

whether the mainspring is wound up fully or not, etc.

● The key components in mechanical watches are made of metals which expand

or contract depending on temperatures due to metal properties. This exerts an

effect on the accuracy of the watches. Mechanical watches tend to lose time at

high temperatures while they tend to gain time at low temperatures.

● In order to improve accuracy, it is important to regularly supply energy to the

balance that controls the speed of the gears. The driving force of the mainspring

that powers mechanical watches varies between when it is fully wound and

immediately before it is unwound. As the mainspring unwinds, the force

weakens.

Relatively steady accuracy can be obtained by wearing the watch on the wrist

frequently for the self-winding type and winding up the mainspring fully everyday

at a ﬁxed time to move it regularly for the wind-up mechanical type.

● When affected by external strong magnetism, a mechanical watch may loss/gain

time temporarily. The parts of the watch may become magnetized depending on

the extent of the effect. In such a case, consult the retailer from whom the watch

was purchased since the watch requires repair, including demagnetizing.

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Seiko 4R39 Seite 13

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