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OPERATION PROCEDURE
Winding direction
Hour hand
Minute hand
Crown
Parts and names
Winding the mainspring
This watch is a mechanical watch driven by mainspring.
1. Push the crown in to position .
2. Rotate the crown to wind the mainspring.
・
The movement can be wound by turning the crown to the right when it is in position .
・
Turn the crown slowly to minimize the bad effects on the watch parts.
・
When the movement is fully wound, the crown will not be turned to the right anymore.
If you try to further turn the crown, watch parts may be damaged.
・
To keep the watch accuracy, it is recommended to wind the movement every day.
1. Pull the crown out to position .
2. Rotate the crown to adjust the time.
3. Push the crown in to position to finish the procedure
Mechanical watches may become inaccurate due to insufficient lubrication or worn parts.
Have the watch disassembled and cleaned (overhaul) every 2-3 years (charge basis).
It may be difficult to restore the watch from degradation after long-term use to its initial
performance even after repairs.
Adjusting the time
Maintenance
Second indication
on the tourbillon
Specifications
Model : Cal. Y392
Type : Manual winding mechanical watch
Number of jewels : 29
Timekeeping Accuracy : -4 seconds to +20 seconds per day (static accuracy)
Time display : hour and minute, and the second indication on the tourbillon
Rough indication of maximum run time : a
bout
90 hours (
when fully wound
)
Beats : 21,600 times per hour (6 beats)
Note
Accuracy was measured statically. As the characteristics of the mechanical watch, its
accuracy may be affected by actual usage conditions (continuous wearing time, watch
orientation, arm movement, winding condition of the main spring, etc.) and may be
deteriorated more than the stated daily accuracy. Maximum run time stated is a rough
indication.
