Atmos II / Calibre II Dating

SimonSoS

Registered User
Jun 8, 2020
7
1
1
48
Country
Hi,

I've inherited an Atmos II. The dial has some deterioration but I'm leaving that as I think it should be kept original (happy to be corrected). I'm trying to date the clock but it has what could be two different serial numbers. The top one is 8026 and the bottom one (through the dial) is 7277. Could anyone please give me their view on which is serial number and the date of the clock?

Thanks. IMG_0662 Small.jpg IMG_0663 Small.jpg
 

new_hampster

Registered User
Aug 3, 2006
117
17
18
Country
Region
There was a period where both the clock (top) and the movement had separate serial numbers. I have 8042/7254 and 8044/7303, both chrome. Those were dated by John Hubby to the beginning of the 4th quarter, 1941. I am fascinated by clocks of this era, as much of Europe was already at war.
 

SimonSoS

Registered User
Jun 8, 2020
7
1
1
48
Country
It would be nice to see full pictures of the clock. As for dating, check out this website:

Mike's Atmos Clock Clinic's Atmos clock & Herschede clock Dating Page (atmosman.com)

I'm not familiar with two different numbers, although there is usually a number/date on the bellows which might be more accurate. It appears that your clock might be from the 1940s.

Kurt
Hi Kurt,

Mike has now dated the clock at Feb 1942 based on the top serial number.

At your request, here's some more photos to the clock.

Thanks
Simon
SMALL Atmos01DSCN2211.jpg SMALL Atmos11DSCN2224.jpg SMALL Atmos15DSCN2231.jpg SMALL Atmos16DSCN2232.jpg
 
  • Like
Reactions: musicguy

SimonSoS

Registered User
Jun 8, 2020
7
1
1
48
Country
There was a period where both the clock (top) and the movement had separate serial numbers. I have 8042/7254 and 8044/7303, both chrome. Those were dated by John Hubby to the beginning of the 4th quarter, 1941. I am fascinated by clocks of this era, as much of Europe was already at war.
Wow - how did you come by two nearly sequentially numbered clocks?
 

MUN CHOR-WENG

Registered User
Sep 5, 2000
482
27
28
Country
Simon,
I had mentioned in some of my previous posts that it is not possible to date an Atmos accurately based on the serial number without refering to the Jager LeCoultre factory record. This is because the Atmos were not produced consecutively based on. serial number. An Atmos with a higher serial number can be made earlier than one with a lower serial number and vice versa.
This can best be illustrated in the Mike Murray's published list from which I believe you date your Atmos II. If you look from the list which I copy and is shown below, clock with serial with serial number 26131 was made in 6 June 1950 while clock with a lower serial number 23546 was made almost two years later in 15 May 1952.
1614120730238.png
I believe the dates shown in the above list were those written on the bellows reflecting the time the bellows were made. These bellows were fitted into the clock one or two months later and the dates of each finished Atmos is recorded in the factory archive.

Mun C W
 

new_hampster

Registered User
Aug 3, 2006
117
17
18
Country
Region
Wow - how did you come by two nearly sequentially numbered clocks?
Pure dumb luck. I bought one, and 8 years later, I ran across the other one. I had no intention of buying what was essentially a duplicate, but when I saw the number, I felt they belonged together.
 

Forum statistics

Threads
164,706
Messages
1,432,937
Members
85,756
Latest member
jtvx
Encyclopedia Pages
1,101
Total wiki contributions
2,863
Last edit
Rockford's early high grade movements by Greg Frauenhoff