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Fig. 1

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Fig. 2

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Fig. 3

Baumgartner 34

manual wind
option: digital display: minute, jumping hour
option: sub second

10.5''', Dm= 23.3mm, Do= 23.9mm
H= 3.8mm
(winding gear, lever cock +0.5mm)
F= 0.5mm
T= 2.2mm
1/15 jewels
f = 18000 A/h
power reserve 32h

Balance staff U1361 / U1391 / U2497
balance with impuls finger/pin/pointed staff

Stem W808

Mainspring / battery
1.30 x 11.5 x 0.11mm

1.40 x 0.85mm

Comments about the data

pin-lever escapement
indirect minute, hand friction clutch on barrel (Roskopf type)
almost equivalent to Würthner 10.5'''

Example, year: signature; shock device
ca. 1975: FON, Fewa Watch Co, Swiss Made, 1 Jewel - BFG 34

© R. van Rijn

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

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