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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

Junghans J36

stem wind and pin set alarm
sub second

18.5''', Dm= 41.4mm, Do= 42.0mm
H= 7.8mm
(winding gear +1.0mm)
F= 1.3mm
T= 3.9mm
7/11 jewels
f = 18000 A/h
Gangreserve 52h/65h
(alarm on/off)
alarm 8s

Balance staff U427

Stem W773

Mainspring / battery
Zf3923, 2.60 x 17.0 x 0.21 x 490mm

3.50 x 2.02 x 1.20 / 0.22mm

Comments about the data

open face calibre
ratchet on dial side, crown mechanism with rocker bar
watch and alarm driven by a single barrel:
A device makes 1.5 revolutions of the mainspring arbor available for the alarm; the clutch wheel for the alarm works simultanously as ratchet.
The alarm loudness is adjustable to certain extent with a screw at 5:30h (under bezel), but a louder alarm reduces the alarm duration.
Interesting detail: A screw in a self-blocking thread of the hammer allows fine sound adjustment (Fig.4).
alarm wheel beared in dial (Fig.3)

J10: pusher for alarm setting
J36: rear crown for alarm setting, new stop device for alarm

Operating Instruction:
Wind watch and alarm: crown.
Set time: crown, pusher at 1h held down. If you set the time reverse and pass the alarm time, this will be set reverse simultaneously.
Set alarm: rear crown. The alarm time can only be set reverse, setting forward is inhibited by a freewheel.
Enable/disable alarm: lever on back side

Example, year: signature; shock device
ca. 1935: 27954, Junghans, J, 36

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

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