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Peter Henlein created the first portable watch in a form of a pendant.
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This ring watch was developed by Woeiriot even though he has got the designs from a book. The ring is was called " Plate 32.
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This watch was created by Nicholas Vallin this watch is made in the shape of a ensign of the English Order.
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These watches have typically pierced cases ,so a person could hear the striking of the bell inside the watch.
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There is an sundial inside the clock showing the distance in the sun and the moon. Which was used for astrological purposes.
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Possdorffer made a watch with a cross-beat escapement.
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These watches were used during World War I and the watch was luminous and had an unbreakable crystal. Wrist watches became the Officer's Kit for the war.
