Junghans Pocketwatch, movement J31 - Dirk E. Fassbender

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Junghans Pocketwatch, movement J31

Junghans
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Indestructible Watch
1923
Open face
J31
102
18,5'''
42,0 mm
41,4 mm
6,0 mm
18000 A/h
40 h
U418
W300
Zf3641
Junghans mentions spring number
1007 450 x 2,25 x 0,205 mm
F.W.S 1942 page 17
3
Junghans catalog 1923 extract:
Junghans "Indestructible" Watch, Movement No. J31 with 3 jewels, compensating hair spring, club teeth escape wheel, double safety roller, gilt plates, well regulated.
These watches can also be supplied with Radium luminous figures (RZ)
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