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12''', Dm= 27.0mm
f = 18000 A/h
power reserve 42h
Balance staff U2041
Mainspring / battery
Zf877, 1.30 x 10.5 x 0.12 x 320mm
2.20 x 1.50 x 0.90 x 0.20mm
Comments about the data
427: alarm assembly slightly modified
Wind watch and alarm: the movement has two independent barrels for watch and alarm. It is recommended to wind both completely each morning as follows:
Make sure that the crown is completely pushed in.
Watch: turn crown towards 6h.
Alarm: turn cown towards 12h.
Attention: if a resistance appears in one or the other direction, the according barrel is completely wound up. Do not force further. Continue to wind in the other direction.
Set time: pull crown to the second latch and set time. If you set the time reverse and pass the alarm time, this will be set reverse simultaneously.
Set alarm: pull crown to the first latch and set alarm time. The alarm time can only be set reverse, setting forward is inhibited by a freewheel.
Enable alarm: turn cown a bit towards 12h; i.e. the alarm is automatically enabled whenever it is wound.
Disable alarm: press the pusher down.
Example, year: signature; shock device
ca. 1960: 24, Roamer Watch Co, Swiss, 17 Jewels - MST 427; Incabloc
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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