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

Longines 18.49

stem wind and pin set
sub second

18''', Dm= 39.75mm, Do= 40.65mm
H= 7.05mm
F= 0.75mm
T= 3.0mm
7/15 jewels
f = 18000 A/h
power reserve 38h

Balance staff U1048

Stem W1547

Mainspring / battery
2.50 x 15.5 x 0.19mm

1.78 x 0.55 / 0.26mm

Comments about the data

open face calibre
bimetallic screw balance
ratchet on dial side, click-unlocking from rear side by marked screw head, crown mechanism with rocker bar
straight long lever (ligne angulaire) with counterweight and hidden pallets (Fig.3)

Swiss Patent 16831:
filed 11-21-1931, Charles Brisebard, Besancon (FR)
two-section regulator for coarse and fine adjustment (Fig.4)

18.49: open face
18.50: hunter

Example, year: signature; shock device
1908: Longines, +16831 - 2030522

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
Poststr. 32a
26388 Wilhelmshaven
phone +49 (0)4423 9849691

email: info@ranfft.de