I'm sorry Dan i'm not answering your question but instead asking you one. Do you have the seconds hand from the chronograph constantly running when you wear your watches ?
The reason i ask is because constant use of the chronograph can cause premiture wear in the drivetrain of the watch (or at very least reduce the length of time between services).
Cheers - Darren
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-: I have noticed that when I put on my Montreal and Calculator in the
: morning (12 and 15 respectively) the second hand will start
: running even if I have stopped it before putting the watch to
: bed at night. Can anyone shed light on this phenomenon? Does it
: indicate a need for service?

: thanks, Dan