Jaeger-LeCoultre’s Atmos clocks, whose ingenious, near-perpetual mechanical movements are driven by air temperature changes, have been pushing the boundaries of horology and design since the 1930s. We explore their fascinating history and avant-garde evolution in this feature from the WatchTime archives. Before wristwatches came pocketwatches, and before pocketwatches came clocks. All the venerable watchmaking maisons owe some debt to the clockmakers who paved the way for their portable, micromechanical wrist timekeepers, lusso replica orologi and some of them have even produced clocks of their own at some point in their history. Even today, you can find some of the biggest names in luxury wristwatches displayed on wall clocks in watch boutiques and airports — almost all of those clocks powered by electronic rather than mechanical means. However, there is one historical Swiss watch manufacture still actively engaged in mechanical clockmaking in the 21st century — applying to this...