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View picture in original size
Fig. 1

ETA 1029

manual wind
sweep second

5.75 x 8.5''', Dm= 12.8 x 19.2mm
Do= 12.8 x 19.5mm
F= 0.5mm
T= 1.7mm
15 jewels
f = 18000 A/h
power reserve 45h

Balance staff U1418 / U78
hairspring collet 0.45/0.5mm

Stem W80

Mainspring / battery
Zf832, 1.30 x 8.0 x 0.08 x 280mm

1.20 x 0.60mm

Comments about the data

differences not known between 879, 1029, 1041
Probably these numbers a assigned to the available different base plates (cf. ETA 1201), different bridge layouts (cf. ETA 761, 1215) and different lever bridges.

761: no second
879: sweep second
barrel and crown assembly modified:
1201: no second
1211: sweep second

Example, year: signature; shock device
ca. 1950: V - ETA, 1201
(ETA 1201, no second)

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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