Lemania Chronograph 19" Np 1920-х
Корпус № 81222, механизм № 107582
Features
stem-wind chronograph, 60s, 30min, pillar wheel
stem wind and pin set
sub second
Data
19''', Dm= 41.8mm
H= 8.1mm
17 jewels
f = 18000 A/h
power reserve 35h
Balance staff U1558
Stem W1743
Main spring / battery
Zf3704, 2.30 x 17.0 x 0.18 x 550mm
Remarks
open face calibre
Breguet hairspring
family:
19Np: pin set
19Nt: setting without pin
19N20: split second
Example, year: signature; shock device
ca. 1920: 166202
