Constant force revisited.
Hardcore watchmaking at its best.
And the most precise mechanical watch ever?
When régleurs were the stars.
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.