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Fig. 1

View picture in original size
Fig. 2

Helvetia 132 (ETA 2412)

manual wind

6.75''', Dm= 15.3mm, Do= 15.55mm
H= 3.4mm
F= 1.0mm
T= 1.75mm
17/19 jewels
f = 21600 A/h
power reserve 41h

Balance staff U2980

Stem W2972

Mainspring / battery
1.40 x 6.5 x 0.07mm

1.20 x 0.60mm

Comments about the data

escapement and barrel from Helvetia
indirectly driven minute allows a very big balance
differences not known between 132, 133

Example, year: signature; shock device
ca. 1955: Helvetia, Swiss Made, 17 Jewes - 3790, Patented; 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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