If you need a specific part then please see my Atmos parts page.

If you need service then please see my Atmos service page.

I have a small Web page on the history of the Atmos and it can be found at: Atmos History.

Copyright © 1996-2011 Michael P. Murray & Mike's Clock Clinic

LeCoultre Atmos Dating by Decades

    LeCoultre went into full production around May of 1939.
The above dates and serial numbers will give you a reliable
way to date any Atmos.  Please realize that this is not an
exact list because LeCoultre did keep some serial numbers
for certain calibers and they tend to jump, so there is
some overlap but the above is about 98% correct.


    The guess on the 2000’s and up is because all the dates
are based on my overhauls of the Atmos and I simply have
only overhauled a few made after 1999.


  
    Now for the specific dating information I offer.
  

  The following Acrobat file contains some of the Atmos clocks I have work on, listed by serial
  number. After the serial number is the date that was found on the bellows.

  The bellows were made in batches, so there is some duplication but more than enough
  information to date your specific Atmos to within a month or so.

  All I ask is that you reference where you obtained this information if you use it anywhere on
  the Web including sales or auctions.

  
    ftp://atmosman.com/pdf/$atmos.pdf

    This file contains some of the serial #'s of Atmos clocks that I have
    repaired that still have had the original bellow intact.

    The serial numbers are located on top of the movement next to the fast-slow adjustment. On
    some early caliber 519's and the Atmos II´s the serial number is located on the bottom of the
    movement and you can see it through the front of the case.

    The caliber's from the 522 to the Atmos' made today are stamped, with the particular
    caliber #, on the bottom of the case. The Atmos II and caliber 519 were not stamped on the
    bottom and are nearly identical. You can tell the difference because the Atmos II has the speed
    adjustment as a turn screw rather than a slide lever, which is found on the caliber 519 and all
    models since.

    
      Estimating the value of your Atmos
    

    My "stock" answer for valuation is to go to eBay.com.
    Click on search. Once in search type in the words Atmos clock and leave the category box
    checked as all categories. Check the search title and description and check completed listings
    only. Then proceed down the page until you see the Search icon and click that.

    There you will find the last 30 days of closed auctions and you might find a few that are
    like yours or at least similar. In general, a serial # around 50,000 above or below your serial
    #, will give you a similar Atmos for valuation purposes.

    Please keep in mind, that LeCoultre totally redesigned the Atmos in mid 1983 and therefore
    any Atmos with a serial # under 600,000 is now unique.

    I not an appraiser and don't like to give valuation. Ebay is by far your best research tool
    and the best place to sell it for the best price.

    For information about my Atmos overhaul, please see this page:

    
      Atmos Overhaul Service


      
        Herschede Dating Information

        Herschede dating can also be obtained in an Adobe Acrobat file located at:

        
          ftp://atmosman.com/pdf/hersche.pdf



            A service from,   E-mail address Mike@atmos-man.com
            Mike Murray         Founder of Clocksmiths

A specialist in Atmos and 400-day clock repair.
Also, I overhaul most plug in electric clocks.
In continuous service since 04/01/1982.

Mike's Clock Clinic  Membership: NAWCC



17000 Western Avenue # 7
Gardena, CA  90247-5262



My Web site is located at http://www.atmosclock.us/
Main FTP site is located at http://home.earthlink.net/~atmosman/earthftp.html


Memberships: Clocksmiths; NAWCC
N.A.W.C.C. International 400-day Clock Chapter # 168
Formally Published in Chapter 168's "Torsion Times"
Formally Published in AWCI's "Horological Times"
Formally AWCI's 400-day (Anniversary) clock Bench Course Instructor!

Back to Mike's Clock Clinic's Main Web Page

Copyright © 1995-2011 Michael P. Murray & Mike's Clock Clinic

Created in December of 1995 and last updated January 18, 2011.