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

BM 13750 (Valjoux 7750)

automatic chronograph, 60s, 30min, 12h, cam switched
sub second
day: quickset
date: quickset
hack feature

13.25''', Dm= 30.0mm, Do= 30.4mm
H= 7.9mm
F= 1.9mm
T= 3.0mm
17/25 jewels
f = 28800 A/h
power reserve 46h

Balance staff U3777

Stem W3706 (thread 1.2mm)

Mainspring / battery
1.50 x 12.5 x 0.117 x 620mm

1.20 x 2.00 x 0.25 / 0.18 x 0.18 x 0.18mm

Comments about the data

1973- (Valjoux 7750)

Example, year: signature; shock device
2002: Baume & Mercier, Swiss, 25 Jewels; Incabloc

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