Por lo que nos dice Don Luís, el calibre seria este. Posiblemente el 21
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Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
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Girard-Perregaux 21[/SIZE]
Features
automatic
sweep second
Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 5.5mm
F= 1.0mm
T= 1.5mm
17/39 jewels (39 incl. freewheel rollers)
f = 18000 A/h
power reserve 36h
Balance staff U2393
Stem W2487
Hands
1.30 x 0.80 x 0.22mm
Comments about the data[/TD]
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Remarks
1957-
base movement modified Peseux 330
automatic with two roller freewheels
jewel-bearing rotor
automatic as module on base movement (Fig.4, 5)
family:
18: manual wind, sub second
19: automatic, sub second
20: manual wind, sweep second
21: automatic, sweep second
22: automatic, date, sweep second
23: manual wind, date, sweep second
suffix 09: ring balance
suffix 19: new rotor lock
Suffix 0, 29: features unknown
Example, year: signature; shock device
ca. 1960: 210107, Girard-Perregaux & Co, Gyromatic, Swiss, 17 Jewels - GP; Incabloc
(Girard-Perregaux 21.0)[/TD]
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