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Herc chrono advice
https://www.breitlingsource.com/phpBB2/viewtopic.php?f=12&t=12281		 Page 1 of 1
Author:  Sav [ Tue Aug 18, 2009 12:07 am ]
Post subject:  Herc chrono advice
Morning,

Was a bit bored on the train home last night so I decided to stop/start/reset the chrono a few times (like I said, I was bored). I noticed that sometimes when I would start or reset it, the minute hand would sneak forward a tiny bit, maybe 1/3 or 1/2 or a minute's distance.

I thought I had read something on here about the same thing a while back but can't find it. Is this a huge problem? Apart from meaning that I'll have to reset the time more often, are there any other implications?

Ta
Author:  Roffensian [ Tue Aug 18, 2009 5:01 am ]
Post subject:  Re: Herc chrono advice
viewtopic.php?f=12&t=11997
Author:  Sav [ Tue Aug 18, 2009 6:13 am ]
Post subject:  Re: Herc chrono advice
Cheers Roff :)
Author:  Spartan [ Sat Aug 22, 2009 4:04 am ]
Post subject:  Re: Herc chrono advice
I thought this was an issue with ETA Valjoux 7750 based movements. The mighty Herc doesn't use this movement :?
Author:  Roffensian [ Sat Aug 22, 2009 4:12 am ]
Post subject:  Re: Herc chrono advice
Spartan wrote:
I thought this was an issue with ETA Valjoux 7750 based movements. The mighty Herc doesn't use this movement :?


No it's a problem with virtually every mechanical movement - as stated in the original thread.
Author:  Spartan [ Sat Aug 22, 2009 4:29 am ]
Post subject:  Re: Herc chrono advice
Roffensian wrote:
Spartan wrote:
I thought this was an issue with ETA Valjoux 7750 based movements. The mighty Herc doesn't use this movement :?


No it's a problem with virtually every mechanical movement - as stated in the original thread.

Just curious. Does the Rolex Daytona skip? Anyone know for sure?
Author:  br549 [ Sat Aug 22, 2009 4:36 am ]
Post subject:  Re: Herc chrono advice
Spartan wrote:
Roffensian wrote:
Spartan wrote:
I thought this was an issue with ETA Valjoux 7750 based movements. The mighty Herc doesn't use this movement :?


No it's a problem with virtually every mechanical movement - as stated in the original thread.

Just curious. Does the Rolex Daytona skip? Anyone know for sure?

Roff said it's a problem with 99% of chronographs. So if it's a chronograph I would think it does.
Author:  Roffensian [ Sat Aug 22, 2009 4:38 am ]
Post subject:  Re: Herc chrono advice
It depends on how the chrono engagement mechanism is designed, I don't know enough about Rolex movements to know for sure.

The other thing to bear in mind is that although the vast majority of mechanical chrono movements suffer from the problem, not all of them will show the symptoms of an obviously moving minute hand. As onewatchnut pointed out you can also find different examples of the same model with different amounts of movement.
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