I did the test on a Jaeger-LeCoultre Master Ultra Thin 145.240.792B (cal.849) taken from the shelf and was happy to see that the movement had come to a standstill 2minutes after the crown had been pulled.
Hello, I bought myself a VC Patrimony Classique in July, and since then, I had to return it twice for servicing becuse the watch had an awry power reserve (it would indeed stop after only 10 hours), it was running too fast, and the movement slowed down an...
otherwise I would be happy to do the crown-out test for you. I hope the power reserve issue is now settled with the second servicing. A question: why leave the crown out for anything more than setting the time? Bill
Hello, Bill, That's a good answer. .. just because one day I forgot I had left the crown out and some time later I noticed that the movement had come to a standstill. Best regards, Oliver