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Breitling B-1 question - Confusion regarding movement/dial
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Author:  emale [ Tue Oct 18, 2011 1:00 pm ]
Post subject:  Breitling B-1 question - Confusion regarding movement/dial
I just saw a B-1 with reference number A68062 , with the words " chronometre b-1" on the dial ?

I was thinking the word "chronometre" was present on only the a78 models .

Can someone please confirm this ?

:superman:
Author:  Brez [ Tue Oct 18, 2011 1:21 pm ]
Post subject:  Re: Breitling B-1 question - Confusion regarding movement/di
I believe you are correct.

The Breitling Caliber 68

The Caliber 68, used in the early B-1s (1998–2003), is based on the ETA E20.331 movement.

From 2000 onwards, all B-1s are certified Chronometers. For a quartz movement to be certified as a chronometer, it should perform no more than a 0.07 second variation in 24 hours, for 11 different tests. That is 2 seconds a month, 25 seconds a year. Mine is well within these specs at roughly 5 seconds a year, which is no unusual performance for this model. Some non-SuperQuartz models have a very good accuracy as well.

Breitling may change the Caliber 68 from your watch to a Caliber 78, usually at no added cost, during a complete service.

The Breitling Caliber 78

The B78, used in the B-1s from 2003 to 2006, is a thermo-compensated SuperQuartz™, COSC certified (as suggest the words “Chronomètre” on the dial and caseback).

http://donindiano.lanetcie.com/watches/ ... 1/movement
Author:  Brez [ Tue Oct 18, 2011 1:25 pm ]
Post subject:  Re: Breitling B-1 question - Confusion regarding movement/di
Sorry what I meant to say was

Calibre 68 was certified chronometer from 2000-2003. From 2003 an on the superquartz in calibre 78 was used.

Therefore the words chronometer with the 68 could show.
Author:  emale [ Tue Oct 18, 2011 1:27 pm ]
Post subject:  Re: Breitling B-1 question - Confusion regarding movement/di
Brez wrote:
Sorry what I meant to say was

Calibre 68 was certified chronometer from 2000-2003. From 2003 an on the superquartz in calibre 78 was used.

Therefore the words chronometer with the 68 could show.



Thanks for updating that.
Author:  Brez [ Tue Oct 18, 2011 1:32 pm ]
Post subject:  Re: Breitling B-1 question - Confusion regarding movement/di
Some dial and caseback details can help approximately date a B-1. Please note that some B-1s (possibly only the later models) have a date tag between the lower horns; if not, Breitling can precisely date your watch, based on its serial number.

Description of the different models of B-1
Reference number Production years Movement COSC certification Dial wording
A68062 1998–2000 B68 (Quartz) No Breitling 1884
A68362 2000–2003 Yes Breitling B-1
A78362 2003–2006 B78 (SuperQuartz) Breitling Chronomètre B-1
Note: there are many fake (replica) Breitlings with the reference number A68062 (especially along with the serial number 1111). In such cases, differences with the real B-1 are obvious to the naked eye.


Oh oh the history page states that it should only state "breitling b-1"

http://donindiano.lanetcie.com/watches/breitling/b-1/
Author:  emale [ Tue Oct 18, 2011 1:37 pm ]
Post subject:  Re: Breitling B-1 question - Confusion regarding movement/di
What about the difference in accuracy between the a68 and a78 movements ? Is it significant ?
Author:  Roffensian [ Tue Oct 18, 2011 3:14 pm ]
Post subject:  Re: Breitling B-1 question - Confusion regarding movement/di
emale wrote:
What about the difference in accuracy between the a68 and a78 movements ? Is it significant ?



In theory nothing - they are both chronometer certified so can achieve the COSC quartz ratings. However, the non-thermo compensated movement may see more variation in any given time period (i.e. higher error rates at any particular spot check). Over time those will offset.
Author:  findo-400 [ Wed Oct 19, 2011 1:56 pm ]
Post subject:  Re: Breitling B-1 question - Confusion regarding movement/di
Some later A68 movements were detailed "Chronometre B-1" on the dial prior to the A78 movement being fitted so the A68 didn't always have just "B-1" on the dial.

Case in point, my old B-1 Vulcan LE. It is a A68 movement (non Superquartz™)
Image

The other reason could be that it has been re-dialed or even had a new movement. However, if a new Superquartz™ movement has been fitted to an originally non SQ watch, the letters "sq" will have been inscribed on the caseback between the model and serial number.

Hope this assists.
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