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stem wind and set
17''', Dm= 38.2mm
f = 18000 A/h
power reserve 35h
Balance staff U123
Mainspring / battery
1.40 x 15.0 x 0.18mm
1.85 x 1.00 / 0.20mm
Comments about the data
open face / hunter respectively:
331/332: H=4.9mm, 17 Jewels, Reed's regulator
333/334: H=4.9mm, 17 Jewels, Reed's regulator
335/336: H=4.9mm, 15 Jewels, hack feature
335/336: H=5.0/5.2mm, stronger main spring
Example, year: signature; shock device
ca. 1930: 636333, Alpina
(Alpina 338, H=5.2mm)
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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