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date: set by changing 20:40-24h
11.5''', Dm= 25.6mm, Do= 26.0mm
f = 21600 A/h
power reserve 40h
Balance staff U2839
Mainspring / battery
1.10 x 10.0 x 0.11mm
1.50 x 0.90 x 0.21mm
Comments about the data
automatic with two roller freewheels
worm screw regulation gear
The family is based on the manual wind calibre AS 1687/1688.
The automatic mechanism is a joint development of Doxa, Eberhard, Favre-Leuba, Girard-Perregaux, and Zodiac.
30: manual wind
22: automatic, date
33: manual wind, date
suffix A, .5, .7: 36000A/h
escapement and setting mechanism redesigned, hack feature
40: manual wind
42: automatic, date
43: manual wind, date
suffix .1, .4: 36000A/h
Example, year: signature; shock device
ca. 1965: 328148, Girard-Perregaux, Gyromatic, Swiss, 17 Jewels; Incabloc
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.
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