Pink Pages
for Timepieces
All Items
Ranfft Items
Brand Shops
Commit an Item
How to do right
Condition of Watches
About Watches
  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

Zenith 18.28.1.P.E

stem wind and set
sub second

18''', Dm= 39.55mm
H= 5.2mm (5.4mm with winding wheels)
15 jewels
f = 18000 A/h
power reserve 36h

Balance staff U230

Stem W1764

1.55 x 0.95 / 0.25mm

Comments about the data

1905-1982 (all types 18.28)
open face calibre
Breguet hairspring
option: bimetallic screw balance (Fig.3)

Example, year: signature; shock device
1-2) ca. 1930: 69145, Zenith - 145
3-4) ca. 1935: 85506, Zenith - 506

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
phone +49 (0)2434 6034670

email: info@ranfft.de