Junghans J644.83 Manual Del Usario página 6

Features and functions
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1 Hour hand
2 Minute hand
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3 Second hand
4 Date display /
Large date display
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5 Winder
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A B C
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Setting the time
Pull the winder into position C. That stops the watch movement.
To set your watch accurately to the second, it is best to stop the
movement as the second hand is passing the figure 60. You can now
position the minute hand precisely in line with the relevant minute
marker and set the desired time. Press the winder back into position A
to start the second hand.
Setting the date and day of week
Pull the winder into position B. You can now set the date by turning it
to the right and the day of the week by turning it to the left.
Do not make any changes to the date between 8pm and 3am, as the
date is automatically advanced by the movement during this period
and you could damage the date advance mechanism.
If the month has less than 31 days, you have to set the date manually to
the first day of the following month.
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