Junghans movement J30 - Helicopters, pocket watches, helicopter flight simulation and more.

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Junghans movement J30

Timepieces > Junghans > Movements
The J30 was derived from the J26 pocket watch movement. It looks like that this is true as the train has the same teeth numbers and that parts from the J26 fit. It seems that the J30 production followed the J26 to J31 to J32 development whithout changing the movements name. From the first 6.8 mm built height it ended with 6.0 mm built height and subsequent the train measurments changed as well.
1922
-
-
-
50,3 mm
6,8 mm
18000
8 days
U6203
Zf8645, 195 cm x 4,5 x 0,27 x 37 mm
Flume G1 II-157
7
1923
-
-
-
50,3 mm
6,0 mm
18000
8 days
?
Zf8645, 195 cm x 4,5 x 0,27 x 37 mm
Flume G1 II-157
7
?
-
-
-
50,3 mm
6,0 mm
18000
8 days
?
Zf8645, 195 cm x 4,5 x 0,27 x 37 mm
Flume G1 II-157
7
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Reference picture:
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