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View picture in original size
Fig. 1

Girard-Perregaux 26.29 (AS 1758)

manual wind
sub second

10.5''', Dm= 23.3mm, Do= 23.7mm
H= 2.8mm
F= 1.0mm
T= 1.4mm
17/21 jewels
f = 21600 A/h
power reserve 44h

Balance staff U3423

Stem W2302

Mainspring / battery
Zf852, 1.30 x 9.0 x 0.10 x 290mm

1.30 x 0.70 / 0.22mm

Comments about the data

Duofix combined setting for escape wheel
bridge layout differing from the common AS 1758

25: 18000A/h, AS screw balance
25.09, 25.19, 25.29: 18000A/h, AS ring balance
26: 21600A/h, special ring balance
26.09, 26.19: 21600A/h, GP screw balance
26.29: 21600A/h, GP ring balance
26.3: 21600A/h, special ring balance, stronger mainspring

Example, year: signature; shock device
ca. 1960: Girard-Perregaux, 2529464, Swiss, 17 Jewels; Incabloc

© ecollectibilia

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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