The watch stops operating.
The mainspring has not been wound.
Wind up the watch as per How to use (how to wind the mainspring), and set the time. If the watch still does not operate, consult the retailer from whom the watch was purchased.
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.
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.
The watch stops even though the power reserve indicator is not showing “0”.
The watch has been left at a low temperature (below 0°C).
Turn the crown to wind the mainspring and reset the time. At a temperature below 0°C, the watch may stop if the power reserve indicator is showing less than one-sixth of the power reserve.
The watch temporarily gains/loses time.
The watch has been left in extremely high or low temperatures for a long time.
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°C and 35°C.
The watch has been left close to an object with a strong magnetic field.
Correct this condition by moving and keeping the watch away from the magnetic source, and reset the time. If this action does not correct the condition, contact the retailer from whom the watch was purchased.
You drop the watch, hit it against a hard surface, or wear it while playing active sports.
The watch is exposed to strong vibrations.
If accuracy does not return after setting the time, consult the retailer from whom the watch was purchased.
Right after starting the watch, it seems that the seconds hand moves more quickly than usual when setting the time.
When the watch starts moving, it takes a little time before the speed-regulating unit starts operating. (This is not a malfunction.)
It takes several seconds before the speed-regulating unit starts operating.
To set the time correctly, wait for approximately 30 seconds after the seconds hand starts to move, and set the time.
The date changes at 12 o’clock noon.
AM/PM is not properly set.
Advance the hands by 12 hours.
Blur in the display persists.
A small amount of water has got inside the watch due to deterioration of the gasket, etc.
Consult the retailer from whom the watch was purchased.
For a solution to a problem other than listed above, contact the retailer from whom the watch was purchased.