Specifications

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Solution
※Contact the retailer from whom the watch was purchased for any other troubles.
Contact the retailer from whom the watch was purchased.
Refer to "How to wind the mainspring" to wind the mainspring and reset the time. While you are wearing the watch or when
you take it off, check the remaining power shown by the power reserve indicator and wind the mainspring if necessary.
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.
Return the watch to a normal temperature so that it works accurately as usual, and then reset the time. The watch has been
adjusted so that it works accurately when it is worn on your wrist under a normal temperature range between 5℃ and 35℃.
Prevent the watch from making close contact with magnetic objects so that the watch works accurately as usual, and then reset the time.
If the watch does not work accurately again after the above procedure, contact the retailer from whom the watch was purchased.
Reset the time. If the watch does not work accurately as usual after resetting the time, contact
the retailer from whom the watch was purchased.
If the watch is left under a temperature below 0℃, it may stop if the power reserve indicator is
showing less than one-sixth. In such a case, turn the crown to wind the mainspring.
It takes several seconds before the adjustment function starts working. Set the time after the
second hand moves for approximately 30 seconds to set the time correctly.
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■TROUBLE SHOOTING
Trouble Possible cause
The power supplied by the mainspring has been
consumed.
The watch has been left or worn in extremely high
or low temperatures.
The watch has been left under a temperature
below 0℃.
The watch is left close to an object with a strong
magnetic field.
The watch is worn on your wrist only for a short period
of time, or the amount of arm movement is small.
You drop the watch, hit it against a hard surface, or wear it while
playing active sports. The watch is exposed to strong vibrations.
Moisture has entered the watch because the gasket has deteriorated.
When starting the watch, it takes a little time before the
adjustment function starts working (this is not a malfunction).
The watch stops operating.
The inner surface of the glass is clouded.
Even though you wear the watch every day,
the power reserve indicator does not move up.
The watch stops even though the power
reserve indicator is not showing "0".
Right after starting the watch, it seems that the second
hand moves quicker than usual when setting the time.
The watch temporarily gains or loses
time
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■REMARKS ON REPLACEMENT PARTS
・SEIKO makes it policy to usually keep a stock of spare parts for
GRAND SEIKO watches for 10 years. In principle, your watch can be
reconditioned within this period if used normally. (Replacement parts
are those which are essential to maintaining the functional integrity of
the watch.)
・The number of years that a watch is considered repairable may vary
greatly depending on the conditions under which it was used, and
normal accuracy may not be achieved in some cases. We recommend,
therefore, that you consult the retailer from whom the watch was
purchased when having them repair your watch.
・The case, dial, hands, glass and bracelet, or parts thereof may be
replaced with substitutes if the originals are not available.
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■REMARKS ON AFTER-SALES SERVICING
・Your GRAND SEIKO watch was strictly checked and completely
adjusted at the factory to ensure its high accuracy. However, if your
watch gets out of order with the correct way of use as described in this
instruction booklet within the guarantee period, take your watch to the
dealer from whom your watch was purchased together with the
certificate of guarantee. Repair and adjustment will be made without
charge.
・For repair after the guarantee period or for any other information
regarding the watch, contact the retailer from whom your watch was
purchased or the "CUSTOMER SERVICE DEPARTMENT" of SEIKO
WATCH CORPORATION.
東京都千代田区鍛冶町 2-1-10
大阪市西区新町 1-4-24（大阪四ﾂ橋新町ビルディング8階）
お客様相談室
101-0044
550-0013
〒
〒
060-0061
810-0801
札幌市中央区南一条西 7-20-1
（札幌スカイビル4階 セイコーサービスセンター内）
福岡市博多区中洲 5-1-22
（松月堂ビル6階 セイコーサービスセンター内）
お客様相談係
〒
〒
全国共通フリーダイヤル
0120-612-911（下記の最寄地に着信いたします）
75
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■SPECIFICATIONS
1.Features:…Hour, Minute and Second hands, Power Reserve Indicator and Date
2.Frequency of crystal oscillator:…32,768 Hz
3.Loss/gain (monthly average):…Within± 15 seconds (equivalent to±1 second per
day) (worn on your wrist at a normal temperature
range between 5℃ and 35℃)
4.Operational temperature range: …−１０℃ ∼ ＋６０℃
Under a low-temperature condition (below 0℃),
always keep at least one-sixth of the watch power
shown by the power reserve indicator.
5.Driving System:…Spring Drive (Self-winding type with manual winding function)
6.Hand movement:…Sweep second hand
7.Duration:…Approx. 72 hours (Approx. 3 days) *If the power reserve indicator shows the
power supplied by the mainspring is full before starting the watch.
8.IC (Integrated Circuit):…Oscillator, frequency divider, and spring drive control circuit (C-
MOS-IC): 1 piece
9.Jewels:…30 jewels
※The specifications are subject to change without prior notice due to product