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View picture in original size
Fig. 1

ETA-ESA 956.121

Features
quartz controlled stepper motor
sweep second
day: quickset, 2 languages
date: quickset

Data
7.75''', Dm= 17.2mm
H= 3.0mm
T= 1.5mm
7 jewels
f = 32768 Hz

Stem ESA 956.101

Mainspring / battery
364

Hands
1.20 x 0.70 x 0.20mm

Comments about the data

Remarks
1979-1986

family/generations:
7.5''':
956.031: Longlife, no second
956.032: same, minor modifications
956.042: Longlife, no second, date
956.101: sweep second
956.102: same, minor modifications
956.111: sweep second, date
956.112: same, minor modifications
956.113: same, minor modifications
956.114: same, minor modifications
956.119: sweep second, date, moon phase
956.121: sweep second, day, date
956.122: same, minor modifications
956.124: same, minor modifications
8.75''':
956.401: sweep second
956.402: same, minor modifications
956.411: sweep second, date
956.412: same, minor modifications
956.414: same, minor modifications
956.421: sweep second, day, date
956.431: Longlife, no second

Example, year: signature; shock device
1985: Orfina, Swiss V8, 7 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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