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View picture in original size
Fig. 1

Durowe 470-1 (INT)

Features
manual wind
sub second
12h- and 24h display, center hands

Data
11.5''', Dm= 25.6mm, Do= 26.0mm
17 jewels
f = 21600 A/h
power reserve 40h

Balance staff U3224

Stem W2404 / W2875
thread 1.1mm/0.9mm

Mainspring / battery
Zf943, 1.35 x 9.5 x 0.10 x 315mm

Hands
1.30 x 0.80mm

Comments about the data

Remarks
1968-1970

family/generations:
18000 A/h, sweep second 10.5''':
450 : -
450-1: 12h- and 24h display
450-2: date
450-3: day, date
21600 A/h, sweep second 10.5''':
451 : -
451-1: 12h- and 24h display
451-2: date
451-3: day, date
21600 A/h, sub second 11.5''':
470 : -
470-1: 12h- and 24h display
470-2: date
470-3: day, date
21600 A/h, sweep second 11.5''':
471 : -
471-1: 12h- and 24h display
471-2: date
471-3: day, date
471-4: minute stop feature

Example, year: signature; shock device
ca. 1965: 17 Jewels; Duro-Swing
(Durowe 450, 10.5''', 18000A/h)

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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