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Navitimer stops unless chronograph is running
https://www.breitlingsource.com/phpBB2/viewtopic.php?f=12&t=49144		 Page 1 of 1
Author:  illbebeck [ Wed Aug 14, 2013 11:08 am ]
Post subject:  Navitimer stops unless chronograph is running
I have had my Navitimer Heritage for at least ten years now without an issue. It is in light rotation with my other watches and is always kept on a winder when not being worn. Recently it stopped. I gave it a full wind, and it appeared to re-start, but then stopped again after a few minutes. It will also re-start at that point, if I give it a few shakes, but again it stops after a few minutes. If I am wearing the watch and have continuous movement, it will continue to run, but if I am fairly stationary, it will stop after a few minutes as well.

Here's the bizarre part, if I activate the chronograph (after a wind), the watch will run fine for the full duration of the wind/power reserve (42hrs?).

Any ideas as to what the issue is?

Thanks!
Author:  Roffensian [ Wed Aug 14, 2013 11:32 am ]
Post subject:  Re: Navitimer stops unless chronograph is running
Yep, it needs a service. The lubrication in the running train is now insufficient and the friction is greater than the power from the worn out mainspring. The action of the tilting pinion when the chronograph is activated is helping for now, but that won't last. If it's ten years old then it's way past the service window and has been running with no oils for at least 3 years, so get it serviced as soon as possible before more damage is done and you'll have it back like new.
Author:  illbebeck [ Wed Aug 14, 2013 12:38 pm ]
Post subject:  Re: Navitimer stops unless chronograph is running
Thanks. Will do. Do you think the maintenance service will suffice, or would it need the full overhaul?
Author:  natesen [ Wed Aug 14, 2013 1:21 pm ]
Post subject:  Re: Navitimer stops unless chronograph is running
You are looking at a full overhaul at that age.

Sent from my XT907 using Tapatalk 2
Author:  Roffensian [ Wed Aug 14, 2013 5:19 pm ]
Post subject:  Re: Navitimer stops unless chronograph is running
natesen wrote:
You are looking at a full overhaul at that age.

Sent from my XT907 using Tapatalk 2



Yep, plus, plus, plus. Running the watch for 10 years without service is going to have wear to pinions, likely to wheels and maybe the mainspring barrel.
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