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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

AS 9.75'''

manual wind
sub second

9.75''', Dm= 21.7mm, Do= 22.0mm
H= 3.8mm
F= 0.45mm
T= 1.80mm
15 jewels
f = 18000 A/h
power-reserve 36h

Balance staff U1402 (AS 574)

Stem W1137 (AS 574)

Mainspring / battery
Zf1302, 1.60 x 8.0 x 0.09 x 250mm (AS 574)

1.20 x 0.60mm

Comments about the data

bimetallic screw balance (in economical models not cut)
various bridge layouts, example 3-4 probably exclusively for Gallet
This movement demonstrates imressively that a smart design needs no setting-lever spring. Strange that the successor AS 574 got this absurd and often breaking part.

Example, year: signature; shock device
1-2) ca. 1920: - 716, AS
3-4) ca. 1925: Gallet & Co, Swiss, 15Jewels, Unadjusted - 32

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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