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

Gruen 335

manual wind
sub second

8.75 x 9.75''', Dm= 19.45 x 22.0mm
Do= 19.45 x 22.4mm
H= 4.0mm
F= 1.8mm
T= 2.3mm
17 jewels
f = 18000 A/h
power reserve 37h

Balance staff U1737

Stem W2075

Mainspring / battery
1.18 x 8.5 x 0.105 x 250mm
~Zf665, 1.20 x 8.5 x 0.095 x 265mm

1.22 x 0.66 / 0.16mm

Comments about the data

Breguet hairspring

barrel shape
335: 17 jewels
335-21: 21 jewels
335R: 21/23 jewels, Incabloc
335N: 21/23 jewels, plate optimized for Incabloc
cushion shape
430: 17 jewels, fake separate escape-wheel cock
431: 15 jewels
435: 17 jewels
440: 17 jewels, Curvex, curved back surface

Example, year: signature; shock device
ca. 1945: 612095, GXC, Gruen Watch Co, Precision, Switzerland, Veri-Thin Patented, 17 Jewels

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)1575 2840629

email: info@ranfft.de