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● How to adjust the length of the band
1. You can lengthen the band by up to about 5 mm
(2 stages) by firmly pressing the push buttons
from both sides to actuate the adjuster.
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* The above illustrations are provided as examples. Some details may differ depending on the model.
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● Inspection and adjustment by disassembly and cleaning (Overhaul)
• Periodic inspection and adjustment by disassembly and cleaning (overhaul) is recommended
approximately once every 2 to 3 years in order to maintain optimal performance of the watch for a long
time.
• The power transmission gear of the movement of this watch constantly receives force. To ensure that
this mechanism works properly all the time, washing parts, changing oil, adjusting accuracy, checking
functions and replacing consumable parts on a regular basis are important. The first overhaul after the
purchase of your watch is particularly important for preserving long-time use of your watch. According
to use conditions, the oil retaining condition of your watch mechanical parts may deteriorate, abrasion
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of the parts due to contamination of oil may advance or delay the time significantly, or the watch itself
may stop.
As the parts such as gasket may deteriorate, water resistant performance may be impaired due to
intrusion of perspiration and moisture.
Inspection and adjustment by disassembly and cleaning (overhaul) should be performed by the retailer
from whom the watch was purchased, and who specifies "SEIKO GENUINE PARTS." At this time, also
request replacement of the gasket and the spring bar.
• When your watch is inspected and adjusted by disassembly and cleaning (overhauled), the movement
of your watch may be replaced.
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2. Fasten the clasp by pressing the frame of the
buckle.
* Even while the clasp is closed, you can still retract
the length of band extended by the adjuster.
After sales service
● Notes on guarantee and repair
• Contact the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER
for repair or overhaul.
• Within the guarantee period, present the certificate of guarantee to receive repair services.
• Guarantee coverage is provided in the certificate of guarantee.
Read carefully and retain it.
• For repair services after the guarantee period has expired, if the functions of the watch can be restored
by repair work, we will undertake repair services upon request and payment.
● Replacement with functional parts
• Please keep in mind that if original parts are not available, they may be replaced with substitutes whose
outward appearance may differ from the originals.
Accuracy of mechanical watches
○ The accuracy of mechanical watches is indicated by the "daily rate."
○ The accuracy of mechanical watches may not fall within the specified
range of time accuracy because loss/gain changes according to the
position of the watch, which is dependent on 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 loss/gain of mechanical watches is not measured by a daily rate,
but by daily rates of one week or so.
○ Accuracy variation according to temperature
The parts that compose the accuracy of mechanical watches are made of metals. It is well known that
metals 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.
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