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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Cyma 031

manual wind
sub second

10.5''', Dm= 23.3mm, Do= 23.7mm
H= 4.0mm
F= 0.4mm
T= 1.5mm
15 jewels
f = 18000 A/h
power reserve 40h

Balance staff U134 / U127
single/double roller

Stem W53

Mainspring / battery
Zf1263, 1.55 x 8.5 x 0.09 x 280mm

1.30 x 0.85 / 0.18mm

Comments about the data

open face calibre

hunter / open face respectively
030 / 031: 1 train cock
032 / 033: 2 train cocks
suffix Kb: Cymaflex-I shock protection

Example, year: signature; shock device
ca. 1930: Cyma, Ref.030, Swiss Made, 15 Jewels - 344786, Brevets +
(Cyma 030, hunter)

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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