Mühle Glashütte Lunova Bedienungsanleitung Seite 19

Your Mühle watch is equipped with an automatic winding mechanism and is
wound by activity when wearing the watch. Once fully wound, the watch has
the power reserve listed in the technical specifications. That is the amount of
time the fully-wound watch can be set aside without activity before it stops.
The full power reserve is reached if the watch is worn at least 10 hours a day
at an average level of activity.
Alternatively, the watch can be wound by hand (also see
page 22). 25 to 30 turns of the rotating crown are necessary
in order to build up the full power reserve. Mühle automatic
watches are equipped with a slip coupling, i.e. they cannot be over-wound
when winding by hand.
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