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valjoux movements for breitling.modified by breitling?cosc?
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Author:  crod [ Mon Aug 27, 2012 9:58 am ]
Post subject:  valjoux movements for breitling.modified by breitling?cosc?
hey guys, wondering about the movement in the SA specifically. is it modified significantly by breitling to make it meet the cosc standards? or is it a standard movement?

thanks for anyhelp. also. it is the 7750 right?
Author:  sharkman [ Mon Aug 27, 2012 10:01 am ]
Post subject:  Re: valjoux movements for breitling.modified by breitling?co
crod wrote:
hey guys, wondering about the movement in the SA specifically. is it modified significantly by breitling to make it meet the cosc standards? or is it a standard movement?

thanks for anyhelp. also. it is the 7750 right?



Yes it is modified signifcantly although a manufacturer could buy a Chronometer grade finshed movement diectly form Swatch/ETA/Valjoux.
Author:  crod [ Mon Aug 27, 2012 10:03 am ]
Post subject:  Re: valjoux movements for breitling.modified by breitling?co
with out getting super technical. what are some of the mods they perform to the movements?
Author:  sharkman [ Mon Aug 27, 2012 10:08 am ]
Post subject:  Re: valjoux movements for breitling.modified by breitling?co
crod wrote:
with out getting super technical. what are some of the mods they perform to the movements?



viewtopic.php?f=1&t=15774&hilit=ebauche
Author:  rgilbert24 [ Fri Sep 21, 2012 4:00 pm ]
Post subject:  Re: valjoux movements for breitling.modified by breitling?co
Great information, thanks. I am surprised though that there is not specific information as you would think someone would have torn down the movement and reported in detail what is different from a standard 7750.
Author:  Roffensian [ Fri Sep 21, 2012 4:57 pm ]
Post subject:  Re: valjoux movements for breitling.modified by breitling?co
rgilbert24 wrote:
Great information, thanks. I am surprised though that there is not specific information as you would think someone would have torn down the movement and reported in detail what is different from a standard 7750.



How do you tell the difference between two wheels that are identical other than the tolerances that they are machined to?
Author:  P51 [ Fri Jun 21, 2013 10:21 pm ]
Post subject:  Re: valjoux movements for breitling.modified by breitling?co
Roffensian wrote:
rgilbert24 wrote:
Great information, thanks. I am surprised though that there is not specific information as you would think someone would have torn down the movement and reported in detail what is different from a standard 7750.



How do you tell the difference between two wheels that are identical other than the tolerances that they are machined to?



Hey Crod,

If you had some first rate measuring equipment, then that would be possible. But you would have to know exactly what you are looking for and understand the tolerances allowed for on each part as the intention to meet COSC as the objective. As outsiders, we would be interminably checking tolerances and determining which parts had been modded. There would be question marks over this unless someone at Breitling spilled the beans, as such. It’s also about other mods too, so some might be obvious, others not so.

There are some options on how you engineer the virtual ‘blueprinting’ of the movement to meet the standard for timing and reliability. It’s complex and involved, so to work that out you would need to work closely with the technical team tasked with producing a COSC movement.
Author:  crod [ Fri Jul 12, 2013 6:35 am ]
Post subject:  Re: valjoux movements for breitling.modified by breitling?co
sorta like blueprinting a combustion engine? yeah it runs good from the factory but to get it absolutely perfect they have to massage it even more to exact specifications.
Author:  Blockheed [ Fri Jul 12, 2013 7:16 am ]
Post subject:  Re: valjoux movements for breitling.modified by breitling?co
The whole being greater than sum of the parts applies here too. Its not just what was used, but also the care and detail than goes into producing the end product. 60 days? to assemble and make ready for COSC.
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