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Breitling-chronomatic 49
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Author:  CGS [ Fri Nov 12, 2010 3:40 pm ]
Post subject:  Breitling-chronomatic 49
Evening guys,

A friend of mine as purchased one of the above.
Can anyone help with information regarding the time the date changes when watch is running normally.
He seems to believe that it use to always change at 12 o clock exactly.
However he has noticed that it know changes at 10 minutes past midnight.
Which time is normal?
If 10 minutes past midnight is normal why?
If it is not does he have a problem?

Thank you in advance.

Colin
Author:  boogiebot [ Fri Nov 12, 2010 4:01 pm ]
Post subject:  Re: Breitling-chronomatic 49
this is JMO. but i think that 10 minutes after should be normal
Author:  br549 [ Fri Nov 12, 2010 4:05 pm ]
Post subject:  Re: Breitling-chronomatic 49
Perfectly normal. :lingsrock:
Author:  CGS [ Fri Nov 12, 2010 4:09 pm ]
Post subject:  Re: Breitling-chronomatic 49
Thank you guys,

But why on such an expensive timepiece does it not change at exactly 12?
My own blackbird big date changes at exactly 12.
Is it something to do with the different movements.

Regards

Colin
Author:  boogiebot [ Fri Nov 12, 2010 4:13 pm ]
Post subject:  Re: Breitling-chronomatic 49
thats a great question. with your friends chromatic was he watching the watch date change in real time or was he setting the time with the watch and the date changed after 12 am? because i think there is a difference. if he was setting the time and the date changed after 12 ask him to watch the watch at midnight and see if the date changes right at midnight.
Author:  CGS [ Fri Nov 12, 2010 4:19 pm ]
Post subject:  Re: Breitling-chronomatic 49
I believe he had his watch running normally and was watching it,but i will check with him as it is very intriguing.

Colin
Author:  boogiebot [ Fri Nov 12, 2010 4:25 pm ]
Post subject:  Re: Breitling-chronomatic 49
let us know bud i too would be very interested in knowing about this. maybe one of the more senior members can she some light as to why this happens
Author:  Roffensian [ Fri Nov 12, 2010 5:13 pm ]
Post subject:  Re: Breitling-chronomatic 49
It's the difference between the way that the date change mechanism operates. Some have a gradual process that is visible and ends (visually) with it clicking in, others are an instantaneous process.
Author:  boogiebot [ Fri Nov 12, 2010 6:26 pm ]
Post subject:  Re: Breitling-chronomatic 49
Roffensian wrote:
It's the difference between the way that the date change mechanism operates. Some have a gradual process that is visible and ends (visually) with it clicking in, others are an instantaneous process.



would the SA vs b4b motors be a good example of this Roff?
Author:  CGS [ Fri Nov 12, 2010 6:39 pm ]
Post subject:  Re: Breitling-chronomatic 49
Thanks Roff and others for input and advice.

Will pass info on.

Regards

Colin
Author:  CGS [ Sat Nov 13, 2010 1:20 am ]
Post subject:  Re: Breitling-chronomatic 49
Hi

My friend has been in touch this morning and would like me on
his regard to thank you all for the info its been a great help.

Also out of interest he informs me that the date changes just before
10 past midnight when done manually or in normal use.

Once again BS comes up trumps.

Colin
Author:  Roffensian [ Sat Nov 13, 2010 5:55 am ]
Post subject:  Re: Breitling-chronomatic 49
boogiebot wrote:
would the SA vs b4b motors be a good example of this Roff?



Not really - different base movements so they behave differently and the 7750 is a well known 'slow' change, but SA vs. B01 or Cockpit would be a better example.
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