Lang & Heyne monopusher chronograph
with central minute and second registers

Albert von Sachsen in platinum



also available with black dial or gold case


The Caliber IV movement

DIAMETER 16 ¼ lines (36,6 mm)
FREQUENCY 18.000 semi-oscillations
per hour
RUNNING TIME 46 hours
JEWELS 22 rubies, 1 diamond

Shock-resistant gold-screw balance

Breguet spring

Swan-neck fine adjustment

Pulsating eccentric sweep hand

Sweep hand stop mechanism

Winding wheels with double solar finish

Monopusher column wheel chronograph

Chronograph wheels in gold with
two hundred teeth

Minutes counter mechanism installed
on the backside

Frictionless decoupling of the minutes
counter, when the chronograph function
is not in use





Thanks,
rationaltime