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Jaeger-LeCoultre

Oh no it's visable at all angles...

 



When really warm the 5 concertina parts to the bellows nearly expand to the full width of the space...hope that makes sense..!! Which in turn pulls and relaxes the chain which winds the main spring which is the large brass/gold piece just behind the dial. Although you obviously can't see it actually move as it is far to slow...but there is a small cog with numbers on which I have assumed to be an indication of the months of power reserve in the spring.

Fascinating to watch..!!

Andy.

PS - sorry I miss understood your note - yes open the house door to let cold air in to set the bellows off....sort of yes, in winter it is cold in the morning before the heating comes on so yes you can see a big difference during the day..!!

This message has been edited by Andy on 2010-08-12 10:49:08 This message has been edited by Andy on 2010-08-12 11:12:28

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