Discover Jaeger-LeCoultre online services. How did they think to use variations in temperature to power it? The Atmos clock still surprises people today because of its inventiveness. Within a sealed capsule, a mixture of gases expand and contract with each temperature change. Thus, the mechanism winds naturally, without any human intervention. Its unique design allows the observer to see the complexity of its machinery from all angles.
Determining the value of an Atmos Clock depends on the model, age and the over-all condition of the clock and the actual value can vary significantly depending on what the market will bare at that particular time.
Atmos clocks with Oriental Motif Cases white or black plexi-glassthe Gruen wood case models or any other models with rare and unique cases will obviously be worth more then the types described above, depending on their condition.
Excellent Condition - Clock runs perfectly, the finish is bright and clear with only a few minor hairline scratches that are noticeable only at close inspection.
MINT Condition - Clock runs perfectly; case is in perfect condition, no fading and no highline scratches-even at very close inspection; often original box, packing material and documentation included. A good way of determining the approximate value of your particular clock is to regularly visit on-line Auction Sites; look for clocks at auctions similar to yours, comparing your clock to identical ones with the final "winning bid amounts".
Prices at auction sites are often reflective of the current market value of most any item.
Over 40 years experience by Swiss Master Clockmaker! Approximate Year Manufactured.
The value of an Atmos clock may lie in its condition more than in its serial number or age. The most common Atmos types in fairly good condition can fetch anywhere from $ to upward of $1, This is for model numbers , , and These clocks have the standard brass and gold-plated cases. The guess on the '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 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. Atmos Clock Gallery. There have been many models and "styles" of Atmos Clocks produced by Jaeger-LeCoultre since the late 's; however at this time there is no known Atmos Clock reference book that lists all Atmos models and their respective serial numbers.
Mike Murry's data places my clock in by serial number. So how much force is the bellows exerting to compress the large spring inside the motor housing? Aug 3, 99 7 8 Country Flag: Region Flag:.
How to date an Atmos clock accurately
How do you mean " on bellows cover"? Thank you Eric.
There is a paper published by two mechanical engineers from Clemson University, which does a rather complete analysis of a movement Atmos. They give the formula that they use, but do not actually provide the force numbers.
Using their equations I get kg force from the ethyl chloride at 22 degrees centigrade. This is compensated by an opposite force from the atmospheric pressure of kg.
Approximate Year Manufactured. Late 's to 's. Unknown, only a few manufactured. 's. 's. The Atmos clock still surprises people today because of its inventiveness. Within a sealed capsule, a mixture of gases expand and contract with each temperature change. Thus, the mechanism winds naturally, without any human intervention. The subtle union between the classic and the modern is the secret to the Atmos collection's timelessness. But what is an Atmos clock and what does it look like? I have a repair list for Dating the Atmos which will date your Atmos via the serval number. The Atmos middleburyfloralvt.com is it and how can you tell if it's still good. Instructions are also provided to replace it yourself.
The net force is thus 46 kg. This was using their given internal diameter of the bellows of 6.
Feb 16, If you read all the dating information available about Atmos clocks I believe you'll find that the most accurate date that can be obtained for an individual clock is a "best guess." The bellows dates are believed the most accurate for the time frame of manufacture, but the dating does not follow the serial number sequence of the clocks.
When I removed the bellows from the clock, there was a number stamped on the four-bladed plate that you need to rotate to remove the spring, bellows indicator plate, and bellows. This number is not visible when the bellows in on the clock.
The numbers were very neatly engraved into the metal. I don't have the clock right now it is being professionally restore but when I get it back I will post a photo.
May 14, How to date an atmos clock accurately. Timmons Atmos Clock Wire Job and a Look around the shop - Duration: Curt's Clocks - The Atmos Repair Specialist views. Rare Working Jaeger LeCoultre Atmos Clock Model ESTATE PIECE! $; JAEGER LECOULTRE ATMOS CLOCK MODEL c's *EXCELLENT CONDITION! 20 $; JAEGER LE COULTRE VINTAGE ORIGINAL ATMOS MANTLE CLOCK LARGE BOX!!! $ Dating Your Atmos Clock. low as $ and as high as $1,These prices would be reflective of a typical Atmos clock - such as a model/caliber , , and/or and with the standard brass, gold plated case. Atmos clocks with Oriental Motif Cases (white or black plexi-glass), the Gruen wood case models or any other models with rare.
I'll take a look at the back of the dials for dtaes. You must log in or sign up to post here.
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