Junghans J10

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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

98 gr

51 gr

Schramberg

The J10 was the replacement for the Junghans J5 in 1910 and the J10 was relaced by the J36 in 1923.