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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Langendorf 25

stem wind and set
sub second

17.25''', Dm= 38.65mm
H= 4.15mm
15 jewels
f = 18000 A/h
power reserve 32h

Balance staff U165

Stem W228

Mainspring / battery
Zf2863, 1.30 x 15.0 x 0.19 x 430mm

2.05 x 1.20 / 0.25mm

Comments about the data

open face calibre
Langendorf 1 to 160 partially designate movement generations containing calibres with different dimensions.
Longer produced calibres got later a new designation consisting of the width in whole lignes and the old generation number.
new designation: Langendorf 1725

Example, year: signature; shock device
ca. 1930: Lanco 15 Rubis, Swiss Made, 15 Rubis - N

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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