86
87
・ Inspection and adjustment by disassembly and cleaning （overhaul） of this
watch will be performed by SEIKO. When you take the watch to the re-
tailer from whom it was purchased, request that the watch be inspected
and overhauled by SEIKO.
・ We recommend that you have your watch checked by SEIKO every 3 to 4
years for long-time use of your watch.
・ The movement of this watch has a structure that consistent pressure is
applied on its power-transmitting wheels. To ensure these parts work
together properly, periodic inspection including cleaning of parts and
movement, oiling, adjustment of accuracy, functional check and replacement
of worn parts is needed.
Inspection and adjustment by disassembly and cleaning （overhaul） within 3
to 4 years from the date of purchase is highly recommended for long-time
use of your watch.
Contact the retailer from whom the watch was purchased for inspection
and adjustment by disassembly and cleaning （overhaul） of your watch.
Make sure that the gasket and push pin will be also replaced with new ones.
● Inspection and adjustment by disassembly and cleaning （overhaul）
CAUTION
Depending on the environment where a diver’s watch is used, its inner parts or movement as
well as its case or band may be affected. We recommend that you have your watch inspected
and adjusted by disassembly and cleaning （overhaul） regularly once every 3 to 4 years.
・ For any questions or concerns, contact SEIKO CUSTOMER SERVICE
CENTER.
88
89
Solutions
Reference pages
Turn the crown 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.
Page 67
Page 70
Turn the crown to wind the mainspring and reset the time. If the watch is left at a temperature below
0 ºC, it may stop if the power reserve indicator is showing less than one-sixth of the power reserve.
Page 67
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 ºC and 35 ºC.
Page 70
Correct this condition by moving and keeping the watch away from the magnetic source. If this
action does not correct the condition, contact the retailer from whom the watch was purchased.
Page 70
Page 80
Reset the time. If the watch does not return to its normal accuracy after
resetting the time, contact the retailer from whom the watch was purchased.
Page 70
While turning the crown to set the time, the moment the date changes is
midnight. Reset the time making sure that AM/PM is set correctly.
Page 70
■ TROUBLESHOOTING
Troubles
Possible causes
Stoppage
of the
watch
The watch stops operating.
The mainspring has not been wound.
The watch stops even though the power
reserve indicator is not showing “0.”
The watch has been left at a low temperature
（below 0ºC）.
Wrong
display of
the time
and/or
date
The watch temporarily
gains or loses time.
The watch has been left at an extremely high
or low temperature.
The watch has been left close to an object
generating a strong magnetic field.
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 date changes during
daytime.
AM/PM is not correctly set.
90
91
Solutions
Reference pages
Wear the watch for an extended period of time. Or turn the crown to wind
the mainspring.
Page 66
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.
Page 76
Contact the retailer from whom the watch was purchased.
－
■ TROUBLESHOOTING
Troubles
Possible causes
Power
reserve
Even though you wear the
watch every day,
the power reserve indicator
does not move up.
The watch is worn on your wrist only for a
short period of time, or the amount of arm
movement is small.
Others
Right after starting the
watch, it seems that the
second hand moves more
quickly than usual when
setting the time.
When starting the watch, it takes a little time
before the adjustment function starts working.
（This is not a malfunction.）
Blur on the dial gla s s
persists.
Small amount of water has got inside the
watch due to deterioration of the gasket, etc.
※ In the event of any other problem, please contact the retailer from whom the watch was purchased
or SEIKO CUSTOMER SERVICE CENTER.
92
■ SPECIFICATIONS
1. Features: 3 hands （hour, minute and second hands）, Date display, Power reserve indicator
2. Frequency of crystal oscillator: 32,768 Hz
3. Loss/gain （monthly average）: ± 15 seconds （ ± 1 second per day） （worn on your wrist at
normal temperature range between 5 ºC and 35 ºC）
4. Operational temperature range: between -10 ºC and +60 ºC
Under a low-temperature condition （below 0ºC）, always keep
at least one sixth of the watch power shown by the power
reserve indicator.
5. Driving System: ･･ Mainspring （Self-winding type with manual winding function）
6. Hand movement: ･･ Glide-motion hands
7. Continuous operable time: Approx. 72 hours （Approx. 3 days） （If the power reserve
indicator shows the power supplied by the mainspring is full
before starting the watch.）
※ Depending on conditions of use, the continuous operable time
may become shorter than the above.
8. IC （Integrated Circuit）: Oscillator, frequency divider, and spring drive control circuit
（C-MOS-IC）: 1 piece
9. Number of jewels: 30 jewels
※ The specifications are subject to change without prior notice due to product improvements.
グランドセイコー専用フリーダイヤル
０１２０－３０２－６１７
本 社 〒 105-8467 東京都港区芝浦 1-2-1
http://www.seiko-watch.co.jp/
受付時間：月曜～金曜
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土曜・日曜・祝日 9:30 ～ 17:30
お客様相談室
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