Junghans data explanations, updated 26.07.2020 - Helicopters, pocket watches, flight simulation, tools.

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Junghans data explanations, updated 26.07.2020

Junghans
Here are some explanations of the provided data for the Junghans movements. I tried to standardized the appearance of the data for consistency.

Under construction!
Kind:
Master watch

Production:
1931 - 1953

Type:
Hunter case

Variants:
J49, J49G, J49/1

Group:135The reference number used by Junghans in the catalog and pricelist.
Size:19'''''' = Paris Ligne, 1''' equals 2,26 mm
Diameter:41,25mm
Mounting diameter to fit the case or mounting frame.
Height:4,45mm
The distance between the surface, the dial is resting on, and the highest plate, bridge, or cock on the othe side.
f:
18000 A/H

Power reserve:32hThe running time with a full wound mainspring. Only valid if the watch is in original and good running condition.
Balance staff:U397
Stem:W288
Mainspring:Zf3158
Reference picture:
F.W.S 1942 page 18

Case size:
52 x 68mm

Lift angle:40°
Jewels:
15
Hour hand:1,82 x 16mm
Minute hand:0,8 x 20mm
Second hand:0,21 x 7 mm
Movement weight:35g

Movement with stem and crown, movement holding screws, dial and hands.
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