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Jaeger-LeCoultre

fully agree

 

the watch in the window of an AD that would  be exposed to the sun in summer and, subsequently the lubricant inside could age much faster than the same watch in a drawer at home or on the wrist of a happy person.

(an interesting article here www.oilanalysis.com regarding aging oil and temperature, although not directly applicable to horology, the principle is there.if you increase temperatture, all lubricants will be damaged after a while and will not play their role properly)

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