Sunday, 7 July 2013

The JLC Atmos - Perpetual Mechanical Clock

The Jaeger-LeCoultre Atmos is truly a perpetual clock that requires no winding or any other power source other than the change in temperature or more accurately, atmospheric variations. I was truly intrigue by this technology that I bought one for myself.

The Atmos was first introduced by Jean-Leon Reutter in 1928. Called the Atmos 0, is was encased in a bell jar and air tight sealed. However, the Atmos did not take off until JLC took interest and worked with Reutter to modify the mechanism. The first JLC Atmos was shipped out in 1933 and like they say, the rest is history.
Atmos Front View photo JLCAtmos01HarryTanFrontView.jpg

This is a simple Atmos with no complications. But the mechanisms look wonderful especially on closer inspection. From what I understand, a single day of variation can power the clock for up to 30 days.
Atmos Mechanism photo JLCAtmos03HarryTanMechanism.jpg

Measuring 19.5 x 17 x 22.5cm (L x W x H), this Atmos requires very little adjustment. The accuracy of this clock is remarkable - I only need to adjust every two to three months. Some remarkable information - the balance wheel of the Atmos oscillates twice per minute and consumes 100 times energy than a wristwatch. Plus, no lubrication is needed for this Atmos and the slow moving parts in seems has very little wear and tear. I just wish wristwatches were like that too.
Atmos Mechanism Close Up photo JLCAtmos04HarryTanMechanismCloseUp.jpg

Another close up shot of the mechanism.
Atmos Mechanism Close Up photo JLCAtmos05HarryTanMechanismCloseUp.jpg

And another look at the Atmos clock. Sits proudly in my living room right beside the Baguette Clock. One day, I look forward to owning another (complication) Atmos.
Atmos Table Shot photo JLCAtmos02HarryTanFrontView.jpg

Many thanks to my friend Prof Harry Tan for lending his expertise in producing these wonderful pictures.

No comments:

Post a Comment