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

Brac 175

manual wind

13.5''', Dm= 30.8mm, Do= 31.2mm
15 jewels
f = 17280 A/h
power-reserve 30h

Balance staff U2241 / U2132
pulse pin/finger

Stem W2320

Mainspring / battery
1.40 x 13.5 x 0.14mm

1.90 x 1.10 x 0.24mm

Comments about the data

pin-lever escapement
indirect minute, hand friction clutch on barrel (Roskopf type)
ingenious: one simple part replaces setting-lever spring, yoke, and yoke spring
early samples also with pointed staff

170: 12''', sweep second, date
171: 12''', sub second, date
172: 12''', no second, date
173: 13.5''', sweep second, date
174: 13.5''', sub second, date
175: 13.5''', no second, date
180: 12''', sweep second
181: 12''', sub second
182: 12''', no second
183: 13.5''', sweep second
184: 13.5''', sub second
185: 13.5''', no second

Example, year: signature; shock device
ca. 1960: Swiss, 15 Rubis - Brac 180
(Brac 180, 12''', sweep second)

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