Power Reserve - BMW Ball Manual Del Usuario

※ Test 7
Resumption of the rate: This result is obtained by subtracting the
average mean daily rate of the first two days of testing from the
mean daily rate of the last test day. The resumption of rate can't be
more than 5 seconds.
The official chronometer number delivered by the Official Swiss
Chronometer Testing Institute (COSC) appears under the
chronometer section of the BALL for BMW watches' warranty cards.
BALL Watch Company provides the original chronometer certificate
upon specific request only.
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Power reserve

The display at bottom is the power
reserve indicator. It shows the
remaining power reserve in the
watch in hours. If the watch is not
worn, or during periods of low
activity, the hand of the power
reserve indicator will wind down.
The BALL for BMW Power Reserve features a power reserve
indicator that displays the remaining power reserve on a hand. The
indicator will turn counterclockwise as the power diminishes. During
manual winding or when the watch is worn, the reserve indicator will
move clockwise.
The natural movements of your arms wind the watch up automatically
and the energy will be stored up as power reserve. Manual winding
is only necessary if you stop wearing your watch for several days
or if it stopped.
Remarks:
Do not overwind the watch. Manual winding should be stopped when
the power reserve indicator reaches the end of the scale. Continued
winding could damage the movement.
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