Lange's development chief explains how the signature digital watch came about.
Alan Downing tells the story of René Bittel and Patek Philippe.
Putting together the wheel train.
From basic principles to the gaskets and tubes.
An in-depth explanation of the double-digital display.
A macabre art form that inspired horology.
An account of the ultimate chronometers.
The most complicated watch ever, from a maker of very complex watches.
We speak to three award-winning designers and Anthony de Haas.
The constant force mechanism that's a Lange signature.