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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Landeron 77

Features
manual-wind chronograph, 60s, 30min, cam switched
sub second

Data
13.75''', Dm= 31.0mm, Do= 31.5mm
H= 6.0mm
17 jewels
f = 18000 A/h
power reserve 43h

Balance staff U2569

Stem W2591

Mainspring / battery
Zf1154, 1.45 x 11.5 x 0.13 x 360mm

Hands
1.85 x 1.30 x 0.27 / 0.27 x 0.20mm

Comments about the data

Remarks

family/generations:
separate bridge for fourth and escape wheel:
71: 1st cam mechanism
72: pillar wheel
73: 3rd cam mechanism
78: 4th cam mechanism
3/4 plate:
75: 2nd cam mechanism
77: 3rd cam mechanism
79: 4th cam mechanism

Example, year: signature; shock device
1) 1962: old data sheet
2) ca. 1955: - KC; Incabloc
(Landeron 79)

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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