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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Cortebert 523

stem wind and set
sub second

17.5''' (16.5...17.75'''),
Dm= 39.2mm, Do= 39.8mm
H= 3.7mm
(winding gear +0.3mm)
F= 0.5mm
T= 1.6mm
15 jewels
f = 18000 A/h
power reserve 33h

Balance staff U1581

Stem W1470

Mainspring / battery
1.50 x 13.5 x 0.17 x 390mm

1.85 x 1.10 / 0.25mm

Comments about the data

hunter calibre
Breguet hairspring
except varying bridge layouts no differences known between 517, 519, 523

516, 518, 522: open face
517, 519, 523: hunter
suffix A: bimetallic screw balance, Reed's regulator
suffix B: details not known

Example, year: signature; shock device
ca. 1930: - 641002
(Cortebert 522, open face calibre)

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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