Troubleshooting; Accuracy Of Mechanical Watches - Seiko 6R24 Instructions Manual

TROUBLESHOOTING

Problem Possible causes
The power supplied by the
The watch stops
mainspring has been
operating.
consumed.
Even though you wear the The watch is worn on your
watch every day, wrist only for a short period
the power reserve indicator of time, or the amount of
does not move up. arm movement is small.
The watch has been left in
The watch gains/loses
extremely high or low
temporarily.
temperatures for a long time.
The watch was brought into
close contact with a
magnetic object.
You dropped the watch, hit it against
a hard surface or wore it while
playing active sports. The watch was
exposed to strong vibrations.
The watch has not been
overhauled for more than  years.
The day and date change
AM/PM is not properly set.
at 1 o'clock noon.
The glass is blurred and
Water got inside the watch
due to the deterioration of
the blur persists for a
the gasket, etc.
long time.
*For the solution of troubles other than listed above, contact the retailer from whom the watch was purchased.
4
Solutions
Turn the crown or swing the watch to wind it up. The
watch will start operating. If the watch does not start,
consult the retailer from whom the watch was purchased.
Wear the watch for an extended period of time, or when
taking off the watch, turn the crown to wind the
mainspring if the remaining power shown by the power
reserve indicator is not sufficient for the next use.
Normal accuracy will resume when the
watch returns to normal temperature.
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.
Normal accuracy will not resume.
Consult the retailer from whom the
watch was purchased.
Consult the retailer from whom the
watch was purchased.
Advance the hands by 1 hours.
Consult the retailer from whom 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,
and 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 fully wound and immedi-
ately before it is unwound. As the mainspring unwinds, the force weakens.
Relatively steady accuracy can be obtained by wearing the watch on the wrist fre-
quently 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.