Expert Appraiser’s Comments: The Lang & Heyne “Albert” is a rare German haute-horlogerie monopusher chronograph, presented here in 18K rose gold with a white Grand Feu enamel dial. Its highlight is the hand-wound Calibre IV, featuring a sophisticated column-wheel chronograph with both chronograph seconds and minutes displayed from the centre. The chronograph is operated through a single pusher integrated into the crown, preserving its elegant, classical appearance.