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 mainspring |
Fully wound |
Half wound |
Unwound |
|
Number of hours the watch can run |
Approximately 60 hours (2.5 days) |
Approximately 24 hours (1 day) |
The watch either stops or is running down. |