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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Jeambrun PS31A

Features
manual wind
sub second

Data
10.5''', Dm= 23.3mm, Do= 23.7mm
H= 3.8mm
F= 1.0mm
T= 1.9mm
17 jewels
f = 18000 A/h
power reserve 43h

Balance staff U2626

Stem W2377

Mainspring / battery
Zf1391/3, 1.70 x 9.5 x 0.11 x 285mm

Hands
1.40 x 0.80 / 0.22mm

Comments about the data

Remarks

family/generations:
PS31: 10.5'''
PS32: 11.5'''
PS32C : 11.5, date
PS33C : 11.5, day, date
suffix A: stronger mainspring

Example, year: signature; shock device
ca. 1960: - ; Antichoc-102
(Jeambrun PS31)

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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