Adjusting the gain and loss
Your Atmos Classique clock has been set in the Jaeger-LeCoultre watchmaking factory located at an altitude of 1000 metres in the heart of the Swiss Jura. If, after about one month’s operation (one month is still needed to ensure that the balance is completely stabilised), you observe that it is gaining or losing time slightly, you can correct this using the adjusting lever which is located at the top of the movement.
The table below shows you by how many graduations the adjusting lever must be moved depending on the number of minutes’ time loss or gain on your clock. In accordance with the information in the table, to correct for time gain, move the lever to the left towards the «-» sign; to correct for time loss, move the lever to the right towards the «+» sign.
Once you have started up your Atmos Classique clock, avoid touching it. It will operate without any intervention by you, because the Atmos clock simply lives on air.