Junghans J48, updated 06.08.2020 - Helicopters, pocket watches, flight simulation, tools.

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Junghans J48, updated 06.08.2020

Junghans
Master watch
1931 - 1938
Open face
J48, J48G, J48b/1
130
18,5'''
41,25 mm
4,45 mm
18000 A/h
32 h
U397
W288
Zf3148
F.W.S 1942 page 18

15
1.82 x 16 mm
1.18 x 20 mm
0.21 x 7 mm
Kind:
Production:
Type:
Variants:
Catalog Group:
Size:
Diameter:
Height:
f:
Power reserve:
Balance staff:
Stem:
Mainspring:
Reference picture:
Lift angle:
Jewels:
Hour hand:
Minute hand:
Seond hand:
Movement weight:
G indicates a new click spring assembly from 1934.

The suffix /1 means that a seperate escapement wheel bridge/cock is used. I assume that these watches are made from 1938 or later.

According to a letter from Friedrich Emmel to Mr. v. Zeppelin, 28. April 1958, the construction of a new pocket watch with a quality between J38 and J41/J42 was ordered in 1928. Result was the J47, J48 and J49 which could be delivered 1930.
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