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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

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Fig. 5

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Fig. 6

AS 976

Features
manual wind

Data
5.5 x 7''', Dm= 12.2 x 15.5mm
Do= 12.2 x 15.85mm
H= 3.5mm
F= 0.5mm
T= 1.7mm
15/17 jewels
f = 18000 A/h
power reserve 40h

Balance staff according hairspring collet
screw balance:
U2437: 0.4mm
U1422: 0.45mm
U1181: 0.5mm
ring balance:
U3091: 0.45mm

Stem W967

Mainspring / battery
Zf994, 1.40 x 6.0 x 0.06 x 210mm

Hands
1.00 x 0.55mm

Comments about the data

Remarks
differences not known between 976, 986, 990, 1022, 1057, 1079, 1246, 1273, 1406, 1467, 1482, 1489
probably catalog designation for different britge layouts (cf. Fig.5)

family:
976: 18000 A/h
1676: 21600 A/h

Example, year: signature; shock device
1-2) ca. 1945: -
3-4) ca. 1955: Swiss Made, 17 Rubis - NM; Incabloc
5-6) ca. 1950: Eska Watch Co, Swiss, 17 Jewels

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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