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Fig. 1

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Fig. 2

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Fig. 3

AS 1287

manual wind
sweep second

10.5''', Dm= 23.3mm, Do= 23.7mm
H= 4.5mm
F= 1.1mm
15/17 jewels
f = 18000 A/h
power reserve 40h

Balance staff U1512

Stem W1149

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

1.31 x 0.85 x 0.22mm

Comments about the data

differences not known between 1287, 1497

1287, 1497: 10.5'''
1255, 1294, 1494: 11.5'''

Example, year: signature; shock device
1-2) ca. 1940: Olma, Swiss Made, 15 Jewels - AS, 1287, 1294, Brevet + Dep.
3) ca. 1960: Musette, Swiss, 17 Rubis; 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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