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View picture in original size
Fig. 1

View picture in original size
Fig. 2

GUB 08-20

Features
manual wind

Data
5.75 x 6.75''', Dm= 13.0 x 15.15mm
Do= 13.0 x 15.55mm
H= 3.5mm
F= 0.6mm
T= 1.7mm
17 jewels
f = 21600 A/h
power reserve 41h

Balance staff U3432

Stem W3345, W3395

Mainspring / battery
1.40 x 6.0 x 0.07mm

Hands
1.00 x 0.55mm

Comments about the data

Remarks
1959-1970, 2610597 (77, 08-20, 08-692)
differences not known between 77, 08-20, 08-692

generations:
77: old designation
08-20, 08-692: new designations
09-20: redesign, just few parts interchangable

Example, year: signature; shock device
ca. 1965: Glashütte, 08-692; GUB
(GUB 08-692)

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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