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View picture in original size
Fig. 1

View picture in original size
Fig. 2

AS 971

Features
manual wind
sub second

Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 4.3mm
F= 0.5mm
T= 2.1mm
15 jewels
f = 18000 A/h
power reserve 36h

Balance staff U164

Stem W1149

Mainspring / battery
Zf1211, 1.50 x 9.0 x 0.10 x 290mm

Hands
1.30 x 0.80 / 0.24mm

Comments about the data

Remarks
various bridge layouts (cf. AS 340),
differences not known between 780, 784, 785, 971

family:
302, 340: 10.5'''
341: 10.5''', thinner, different balance
780: 11.5'''
806: 11.5''', date
831: 10.5''', date
838: 11.5''', day, date

Example, year: signature; shock device
ca. 1925: Swiss Made - AS
(AS 340, 10.5''')

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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