Jaeger-LeCoultre Atmos table/mantel clock.Perpetual motion clock, with torsion pendulum.Calibre 519 / Serial no. 47365Case dimensions: height 23.5 cm - width 21 cm - depth 16 cm Weight: 5.200 kg This clock functions thanks to changes in temperature.A coil set inside the cylinder situated on the back of the clock expands or compresses with the rise or fall in temperature, which allows the clock to work. In working order and keeps good time. All the glass is intact, the mechanism is perfectly clean, there are some signs of age-related wear on the brass of the outer case. The dial is grey, and it has changed colour due to its age. The dial needs to be cleaned and the case needs to be polished to restore it to like new condition. Polished Roman numerals at 3-6-9-12 o'clock (with a distinctive trait that the numbers 3 and 9 are inverted). In order for the clock to function properly, it must be set on a level surface. To adjust the time, turn the minutes hand clockwise. The clock must not be moved without adjusting the locking lever of the balance wheel from the left to the right. It is rare to find an old clock with such a low serial number that still works well. It will, of course, be well-packaged and sent via registered mail.