QUARTZ WATCH SYSTEM RESET

SNO.16
SeiweBuBetin
QUARTZ WATCH SYSTEM RESET:
Necessary Procedure After Battery Change
What is "system reset"?
Wlien the battery is replaced with a new one, or wtien the battery is removed and reinstailed following the repairing procedures, the information stored in the IC of the circuit
block will be disordered. As a result, digital quartz may show an abnormal display, and the
hands of analogue quartz may not move properly. To return the watch to normal, it is
necessary to reset the circuit following a certain procedure depending on calibres. Such
procedure is generally referred to as "system reset" or "all clear (AC)".
SEIKO CORPORATION
1
[Analogue type]
Method of System Reset
Cal. No.
2M21, 9M21
5T12, 5T32, 5T52
6M13, 6M25, 6M26
7T22, 7T24, 7T27
7T32, 7T34, 7T36
7T42
N944
Y182, Y187
V421, V422
V610
8A20, 8A21, 8A23,
8A24, 8V20, 8V22
V600, V601
V602
Short-circuit the "AC" terminal of the circuit block and the circuit
block cover with conductive tweezers.
Short-circuit.
8C25
Keep all the three buttons pressed at the same time for more than
three seconds.
®
®
Set"OFF T" markonthe rotating bezel atthe 12o'clockposition.
Pull out the crown to the second click, press the button once, and
then push the crown back in to the normal position.
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8M11,8M15, 8M18
8M25, 8M26, 8M32
8M35, 8M37, 8M44
8M48, 8M51
V691, V692
V693, V694
Short-circuit the "AC" terminal of the circuit block and the battery
damp twice with conductive tweezers.
Short-circuit twice with tweezers.
[Digital type]
Cal. No.
A708, A718, A721
A781, A904, A944
L600
S031,S032, S120
S123, S124, S129
S240, S321, S600
S610
A239, A827, A828
*A964, A965, A966
D409, D410
M421, M422, M516
S027, S101, S111
S234, S239, S501
S521
Method of System Reset
W050, W306
W307, W308
W309, W358
W359
* W401
W600, W903
Y960, Y961
W026,
W040,
W304,
W329,
W027
W041
W325
W339
Short-circuit the "AC" terminal of the circuit block and the circuit block cover
with conductive tweezers.
* Cal. W401
Short-circuitthe circuit block
cover and the oscillation
starting terminal with conductive tweezers.
Keep all the four buttons pressed at the same time for more than three
seconds.
* Cal. A964
Press buttons "A", "C", "D"
and "E" at the same time.
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A829, B337
M705, M726
S341
UW01, UW02
Cal. A829
Turn the rotating
bezel 90° clockwise
orcounterclockwise
until it clicks twice.
Cal. B337, M705,
Cal. M726, S341
Press AC switch
connector.
Cal. UW01, UW02
Short-circuitthe battery damp
and the reset terminal with
tweezers.
Battery
damp
2 clicks
S229
If the display shown at left appears after the battery is
replaced with a new one, remove and re-install the battery
once or twice. The display will return to normal.
Cal. No.
Method of System Reset
Turn the crown at the normal position to select a mode. Then, pull
out the crown to activate the setting function, and turn the crown.
Repeatthe procedure in all modes.
B122
Time mode
ID-Q3Q0
Turn the crown.
Calendar mode
Turn the crown.
Alarm mode
Turn the crown.
Timer mode
00:
Turn the crown.
[Duo-display type]
Cal. No.
H601
H801
Method of System Reset
V011
V041
V051
Short-circuit the "AC" terminal of the circuit block and the switch
spring with conductive tweezers.
AC terminal
Tweezers
H449
The minute digits of the alarm time display are
detective.
Show the alarm display, and set the alarm time
again.
4
Printed in Japan