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View picture in original size
Fig. 1

View picture in original size
Fig. 2

AHS 41

Features
manual wind
sub second

Data
10.5''', Dm= 23.7mm, Do= 24.35mm
H= 4.3mm
F= 0.55mm
T= 2.0mm
4 jewels
f = 18000 A/h
power-reserve 37h

Balance staff U1403 (staff with slot)
U2118 (single roller)
U3048 (double roller)

Stem W2238

Mainspring / battery
Zf1391, 1.70 x 9.0 x 0.12 x 240mm

Hands
1.42 x 0.80 / 0.18mm

Comments about the data

Remarks
pin-lever escapement
ratchet on dial side, crown mechanism with rocker bar
balance versions: staff with slot, single roller, double roller
Late samples have a balance bridge instead of a cock, and are signed on the dial side as AHS 42. It is not yet known, which variants were made with this layout.
Often a wrong or no calibre signature is stamped into the 3/4 plate.

family:
40: sub second, pointed staff
41: sub second, pivoted staff
42: sweep second, pointed staff
42(CLD): sweep second, date, pointed staff
43: sweep second, pivoted staff
43(CLD): sweep second, date, pivoted staff
44: no second, pointed staff
45: sub second, jewelled pointed staff
46: sweep second, jewelled pointed staff
47: no second, jewelled pointed staff
54: no second, date, pointed staff
56: sweep second, date, jewelled pointed staff

Example, year: signature; shock device
ca. 1970: -
(AHS 45)

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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