HomeRanfft
Watches
Pink Pages
for Timepieces
.
Home
All Items
Ranfft Items
Brand Shops
Commit an Item
How to do right
Condition of Watches
About Watches
Links
  Help   Log In  Register, Clients   Deutsch  English  EUR  US$  CHF  UKŁ 
 
 
 Index  Timepiece Archive, Categories  Archive: Watch Movements    Timepiece Market 
 
View picture in original size
Fig. 1

View picture in original size
Fig. 2

View picture in original size
Fig. 3

View picture in original size
Fig. 4

View picture in original size
Fig. 5

Cyma 470

Features
automatic
sweep second

Data
8''', Dm= 18.0mm
H= 4.9mm
26 jewels
f = 18000 A/h
power reserve 35h

Balance staff U2623

Stem W2651

Mainspring / battery
1.30 x 6.0 x 0.07mm

Hands
0.95 x 0.65 x 0.18mm

Comments about the data

Remarks
1953-
patented double-excenter winding with jewelled rollers (for low height)
double jewel-bearing rotor
rotor retained by a locking bar (inside the arbor) between both jewels
An intermediate wheel between minute pinion and the rest of the train allows big balance and low profile without reducing the sturdiness (cf. Cyma 10 Pleiade).
Moreover this layout allows to place the seconds wheel either in the center or for a sub second, without further modifications

family/generations:
470: automatic, sweep second
471: automatic, sub second
474: manual wind, sub second
476: manual wind, sweep second
suffix .2: minor modifications

Example, year: signature; shock device
1953: 20911, Cyma, R.470, Patended, Tavannes Switzerland, 26 Jewels; Cymaflex-I

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


bidfun home
...the alternative - free of charge!
Dr. Roland Ranfft
Erkelenzer Str. 98
41844 Wegberg
Germany
phone +49 (0)2434 6034670

email: info@ranfft.de
.