Junghans J10, updated 27.12.2019 - Helicopters, pocket watches, flight simulation, tools.

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Junghans J10, updated 27.12.2019

Junghans
Alarm pocket watch
1911 - 1921
Open face
J10
101
18,5'''
41.85mm
41,4 mm
7,8 mm
18000 A/h
54/66 h
U427, 427 ST
W773
Zf3923, 550 x 2,5 x 0,2 mm
Junghans mentions spring number
1009 515 x 2,55 x 0,205 mm
F.W.S 1942 page 47
3/5/7/11



Schramberg

The J10 was the replacement for the Junghans J5 in 1910 and the J10 was relaced by the J36 in 1923.
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Part chart from 1913, courtesy of JUNGHANS GMBH & CO.KG
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