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■ HOW TO USE
How to wind the mainspring
This watch has a manually wound spring drive.
You can wind the crown to wind the mainspring to drive the watch.
The watch has two mainsprings, a first mainspring and a second mainspring. These two
mainsprings can be simultaneously wound with one operation.
Guide for winding state of the mainspring
Manual winding
: Five full rotations of the crown will provide the power to run the watch
for approximately ten hours.
Observe the power reserve indicator to check the level of the remaining power.
"Power reserve indicator"→ P. 9
* Under a low-temperature condition (below 0 °C), always keep at least one-sixth of the
watch power shown by the power reserve indicator.
The watch may stop.
How to manually wind the mainspring
1 Turn the crown at the normal position
clockwise (12 o'clock direction)
slowly.
2 Wind the mainspring until the power reserve indicator shows a fully wound state.
"Power reserve indicator"→ P. 9
3 Make sure that the seconds hand is moving.
b CAUTION
The crown cannot be turned further when the mainspring is fully wound to prevent
overwinding of the mainspring. Do not try to forcefully turn the crown as this may damage
the watch.
8
HOW TO USE
Power reserve indicator
The power reserve indicator lets you know the winding state of the mainspring.
Before removing the watch from your wrist, observe the power reserve indicator to check if
the watch has stored enough power to keep running until the next time you wear it. If
necessary, wind the mainspring.
(To prevent the watch from stopping, wind the mainspring to store the excess power that will
allow the watch to run for extra time.)
Power reserve indicator
How to read the power reserve indicator
Power reserve
indicator
Winding state of the
Fully wound
mainspring
Number of hours the
Approximately
watch can run
72 hours (3 days)
* The position or design of the power reserve indicator may differ depending on the model.
Each time the minute repeater mechanism is used, a power reserve of approximately 3 to 5
hours is consumed.
Half wound
Unwound
The watch either
Approximately
stops or is running
36 hours (1.5 days)
down.
Power reserve indicator
HOW TO USE
9
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