TECHNICAL GUIDE
Cal. 5D88A
51/51
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The crown falls off.
Small amount of water/blur
inside of the glass persists.
Water resistance is deteriorated.
The watch has been subjected to
water pressure that exceeds the
guaranteed degree.
Investigate the causes to take
n e c e s s a r y m e a s u r e s , w h il e
cleaning inside of the watch.
Symptom Possible causes
Solutions
The dire c t drive indicator
hand does not move.
1
)
The battery voltage has been
depleted.
2)
The coil is broken.
3) One o r more w h e els h ave
been contaminated with dirt,
dust or other particles.
A
n excessive or insufficient
amount of lubricant has been
applied to the wheels.
1) Charge the watch.
2) Replace the power reserve coil
with a new one.
3) Remove dirt or dust and clean
th e con t a minated w heels.
Lubricate the relevant wheels
with appropriate amount of
lubricant.
The dire c t drive indicator
hand is not correctly aligned.
1) The direct drive indicator hand
has been incorrectly mounted
to the wrong position.
2 )T h e po s i t ion o f th e p ower
reser ve related wheels are
incorrect.
1
)
Che ck t h e p os i tion of the
p o w e r r e s e r v e h a n d a n d
remount it correctly.
2)
C h e c k t h e pos i tion of t h e
power reserve related wheels.
3)
Overhaul and clean the power
reserve related wheels.
The winding stem has become
loose.
(The setting lever and the yoke
are disengaged. )
Check if the main plate, winding
stem, setting lever and yoke are
correctly mounted. Replace any
defected part with a new one.
* For the troubleshooting of such defects as conventional quartz watches have in common, refer
to the "TECHNICAL GUIDE, GENERAL INSTRUCTIONS".
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