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Fig. 1

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Fig. 2

Dugena 685 (PUW 60)

manual wind
sweep second

10.5''', Dm= 23.3mm, Do= 23.6mm
H= 4.25mm
F= 1.5mm
T= 2.1mm
17/21 jewels
f = 18000 A/h
power reserve 41h

Balance staff U1834

Stem W2111

Mainspring / battery
Zf1213, 1.50 x 9.5 x 0.10 x 320mm

1.50 x 0.90 x 0.22mm

Comments about the data

In 1955 the PUW 60/61 was regarded as the only German movement with chronometer capability. Probably the reason was that the movements were tested by the traditionally responsible Deutsche Hydrographische Institut Hamburg, while Junghans chronometers were tested by the PTB in Braunschweig (PTB = Pysikalisch-Technische Bundesanstalt = German Federal Institute for Phyical and Technical Standards).

Example, year: signature; shock device
ca. 1955: Dugena 685, P60-61, 21 Jewels - E8; 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.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft

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