BALL Watch BMW Owner's Manual - page 7
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11
ENGLISH
Operating Instructions
[Please see Online User Manual in the Customer Service section at
www.ballwatch.com/bmw for the latest information.]
Functions of the crown
X = Normal position
0 = Manual winding position
1 = Date adjustment
2 = Setting the time
1. Manual Winding: if the watch has not been worn for a long period
of time, wind the movement before setting the time. Unscrew the
crown to position [0], then turn the crown clockwise 20 to 30 times.
2. Time Setting: to set the time, unscrew the crown and pull out to
position [2]. Push the crown back into position [X] when the correct
time is reached. When setting the time, please ensure that the
date display is also set correctly. It should advance at midnight. If it
advances at noon, you will need to turn the hands forward 12 hours.
3. Date Setting: after months with less than 31 days, you need to
set the date to the first day of the next month. To do so, unscrew
the crown and pull it out to position [1]. Turn the crown clockwise to
set the date. On watches with Day function, turn the crown counter-
clockwise to set the Day.
To prevent damage to the date-switching
mechanism, we advise not to manually reset the date between
9PM and 3AM.
4. Always remember to screw down the crown after adjustment,
to ensure water resistance and prevent possible damage to the
movement.
Remarks:
Automatic watches acquire their energy from an oscillating weight
that is activated in response to the movements of your wrist.
Depending on the model, the power reserve ranges from 38 to 48
hours. Manual winding is only necessary if the watch has not been
worn for a long period of time, or if it has stopped.
Depending on the type of movement, the accuracy of a mechanical
movement may vary one to two minutes per week. Accuracy is
strongly influenced by the way the watch is worn.