Marv
356
Information about the Atmos II
Hi Socko,
You will find hereafter some information about the Atmos II. They are based on an article written by Mun Chor Weng and published in a special release of Timewerke.
The production of the Atmos II started in 1936. However, at the beginning, JLC had to solve logistical production issues with the airtight chamber and only very limited number of units were produced the first years. The commercial production resumed in 1939 and ended in 1950 when the Atmos III was issued.
All Atmos II do have a serial number on the movement. In your case, the serial is 11733. But not all have a second serial number on the bridge. For those wich have 2 serial numbers, the second number was stamped on the bridge when the movement was fitted into the case for the final assembly.
If you confirm us that there is no serial number on the bridge of your Atmos II (i.e. on the top of the clock between the two screws on the photo below), it means that your clock was produced between late 1945 and early 1950. I don't see any number, but it could be because of the low quality of the photo.
I hope that JLC will be able to give you more details on the precise date of production. JLC has kept records of the production of the Atmos, except for few periods of time. Between 1941 and 1949, Atmos II were produced as follows:
| Year of Production | Number of units made |
| 1941 | 959 |
| 1942 | 665 |
| 1943 | 268 |
| 1944 | ~ 369 (June production unknown) |
| 1945 | ? |
| 1946 | 2,654 |
| 1947 | ? |
| 1948 | 1,308 |
| 1949 | 1,749 |
source: Jaeger-Lecoultre
ATMOS clock---trying to get info on age of my clock
why don't you contact ...
As time2tic suggested,
Here is a....
Very nice specimen, Jeremy!
they are brilliant clocks regardless of age. the best mantle clock made IMO