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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Langendorf 2-19''' open-face

stem wind and set
sub second

18.5''', Dm= 41.65mm, Do= 42.95mm
H= 5.35mm
F= 0.6mm
T= 2.2mm
15 jewels
f = 18000 A/h
power reserve 33h

Balance staff U1109

Stem W1608

2.00 x 1.20 / 0.30mm

Comments about the data

open-face calibre
option: bimetallic screw balance (in example uncut)
to wide extent equivalent to AM 54, but reasonably higher
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.

Example, year: signature; shock device
ca. 1925: M, Swiss Made - 506230

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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