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View picture in original size
Fig. 1

View picture in original size
Fig. 2

AS 1604N

Features
manual wind
sweep second

Data
13''', Dm= 29.0mm, Do= 29.4mm
H= 4.5mm
F= 1.0mm
T= 1.8mm
17 jewels
f = 18000 A/h
power reserve 38h

Balance staff U2452 / U3129
for balance with/without screws

Stem W2539

Mainspring / battery
Zf1251, 1.50 x 11.5 x 0.14 x 330mm

Hands
1.50 x 0.90 x 0.21mm

Comments about the data

Remarks
so called Wehrmachtswerk (army movement)
like 1604, but adjustable stud carrier and Lubrifix combined setting for escape wheel
different bridge shapes (cf. AS 1604)
differences not known between 1604N, 1637N

Example, year: signature; shock device
ca. 1960: Arsenal, Swiss, 17 Jewels; 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.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft


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