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View picture in original size
Fig. 1

View picture in original size
Fig. 2

AS 1018

manual wind
sweep second

8.75''', Dm= 19.4mm, Do= 19.7mm
H= 4.3mm
F= 0.5mm
T= 1.7mm
7/15/17 jewels
f = 18000 A/h
power reserve 45h

Balance staff U594

Stem W138

Mainspring / battery
Zf1298, 1.60 x 7.5 x 0.08 x 250mm

1.20 x 0.85 x 0.36mm

Comments about the data

1935-1967, <16.000.000
option: bimetallic screw balance
also without separate escape-wheel cock
often or always signed as AS 979
differences not known between 1003, 1018

sub second, 18000 / 21600A/h respectively:
970/1726: plate and bridges plane
1156/1727: edges bevelled, no mounting flange
1556/1828: edges bevelled
indirect sweep second, only 18000A/h:
1003, 1018: plate and bridges plane
1159: edges bevelled, no mounting flange

Example, year: signature; shock device
ca. 1940: M, Swiss Made, 17 Jewels - AS 970
(AS 1003)

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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