Junghans timing watch, movement J28 - Dirk E. Fassbender

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Junghans timing watch, movement J28

Junghans
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Timing Watch
1955 - 1962, 628 1962 - 1989
Open face
28, 28/1, 28/2, 28/11, 28/20,
628.00, 628.01, 628.02, 628.11
19'''
48,8 mm
10,0 mm
1/10 sec. = 36000 A/h
1/100 sec. = 360000 A/H
U2340
W1819

F.W.S 1972 page 111
55 x 76 mm
101g
Stoppwatch made since 1955, 1962 Junghans renamed their movements and the new name for the J28 was now J628 which makes this one built after 1962.

Junghans catalog 1956 text:

Stop Watch 1/10 seconds, with three-circle dial, 7 jewels, jewelled pallets, shockproof, metal case, Start stop and back to zero by successive pressures on the crown, chromium plated metal case 55 mm ø, metal dial.
The 3 advantages of the Junghans Stop Watch 1/10 seconds with Three-circle dial are:
1. Reading made easier by 3 separate dials for minutes, seconds and 1/10 seconds. Avoids hands to be on top of each other.
2. Reading more exactly as the 1/10 seconds hand always stops accurately on the stroke of the scale.
3. Greater exactness as without zero setting fault and without dial fault (no stopping in between strokes)

J28/11 1/100 second, 15 jewels, "Meister"
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These pictures of a Junghans J28/20 "Worktimer" timing watch are courtesy of Deutsches Uhrenmuseum Furtwangen. I could not find any further information of this J28 variant as it is not mentioned in the normal references.
Picture courtesy of Deutsches Uhrenmuseum Furtwangen
Picture courtesy of Deutsches Uhrenmuseum Furtwangen
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