The Breitling Watch Source Forums

hello,

Newbie here. I have a question regarding cases.

I have a Breitling dial that's 35mm in diameter, and I am in search of the correct Breitling case for this lovely dial. It's for a Valjoux/Eta 7750 movement, but it lacks the date box on the dial, and the movement also does not have the date wheel.

The face of the dial of course says Breitling but also, "Chronometre Automatic" below the Breitling brand script on the dial. The 3 smaller dials reside on the bottom half of the dial.

Any idea what model this is, and therefore what case I should purchase for this?

Thank you very much in advance, I've been perplexed for for over a year on this one.

Best,
Martin

Probably one for Roffensian, but i would guess at a Chrono Calisto. Some photos would be a big help. Welcome to the forum Steve

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Quite a few Breitlings, most of them starting with the letter C.

Heck I'm good, but don't know if I'm that good.....

First off - don't think it's a 7750 - I'm assuming subdials at 3, 6 and 9. That and no date window could be a Breilting 11 which powers the Chrono Callisto (that's based on a Lemania movement), but I don't think that the dial is from that - CC is only 35mm including case so this dial would be too big. That movement was also used in the Navitimer Mechanique, and the Patrouille de France, but I wouldn't expect to find those dials, and they would be differently worded.

The Chrono Sextant has that layout, but again that's only 36mm, so that doesn't leave me with much. If I had to guess - maybe an ETA 2892 based watch - Hercules or Twin Sixty 2. With the wording on the dial, Hercules is the only option.

But yes, please - some pictures

OK, here are pictures... and thanks for the welcome... hopefully someone can name what watch this 35mm Breitling dial came from...

THANKS.
Here are links you can CLICK or cut and paste into a browser to see my pics of the dial I have:

http://picasaweb.google.com/humanatek/A ... 4083298738

http://picasaweb.google.com/humanatek/A ... 4196914946

Boy I hope someone can figure this out.

Easy now with a picture, it's a Hercules dial. Steve

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Quite a few Breitlings, most of them starting with the letter C.

Cool... is a Hercules a 7750 movement/caliber?

Thanks guys, I really appreciate the time you guys have given a newbie like me.

Best,

Martin

Actually now that I'm looking at the Hercules... I guess I"m needing both the case and the dial arms that would complete my build up. Any referrals to vendors or trusted individuals that have such items would be much appreciated on my end.

Best,
Martin

Yep, it's a hercules all right, I was playing with one yesterday at the AD.

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Well jeez, is no one going to give me any props for getting it without a picture?????



The Hercules isn't based on a 7750, it's an ETA 2892 based movement.

I don't know of anywhere you can go to 'assemble' the parts, your best bet might well be to go directly to Breitling and see if they'll help you out - but without a movement I'm not sure that they will.

Three cheers for Roffensian, Hip hip Hooray !!!!!!!!!!!

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Quite a few Breitlings, most of them starting with the letter C.

Who is that masked man, that caped crusader...Roffensian? I'll admit, amazing Ling knowledge.

OK, here is another question that maybe someone here can confirm or not.

I found this when I googled for info last night. Now that I know that this dial is a Hercules, I found someone saying that sometimes the eta 2892 is exchangeable with the 7750 with some modifications... anyone tried this yet?

Here is the script I got from google:

"Some Breitling Chronometres with some modifications also permit the 7750 to be fitted with some additional complications, though not as easily as the 2892A2/DD."

"The other two ETA movements 2824/2834 are used for the non chronograph modules, and are capable of being fitted with day/date modules, and other complications, where necessary."

It's worth noting that the 7750 caliber I have on my desk has the dials that line right up with the holes on the hercules dial... go figure? Could it be true that the 7750 can replace an eta2892? My only concern is that it would not fit the case.

Thanks in advance for any insight you could offer.

Best,
Martin

I've never tried it, but I would seriously doubt it. There are many factors to keep in consideration; first of all, the dial feet are differently located on the two models. Secondly, the hands wouldn't fit the pivots, since they have different ticknesses. Thirdly; I would be very amazed if the alignment of the subdials is 100% the same, because if it isn't, there is no way to adjust that.

If you can prove me wrong, please do, I would like to know!

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Vanessa
#18

Aww shucks.....

I'll ignore that nagging suspicion that there is some sarcasm going on

The ETA 2892-A2 is generally regarded as the high end ETA base movement, especially when produced in Chronometer version (the tightest of the three tolerances that it is made to). It's used as a base for a lot of different movements.

By contrast the Valjoux 7750 is more of a workhorse movement, probably not quite in the same league as the 2892, but certainly still a very good - and extremely well proven movement.

However, while you can think of the 2892 as a 'platform' for any number of complications, the 7750 is deisgned to be a chronograph, and that's where you are going to run into problems here. While the sub dials will be a perfect match, I think you are going to run into problems with the crown. Because the chronograph isn't modular (as it is with the 2892) I don't think you can make the 7750 into a 3, 6, 9, Chronograph - it'll always be a 6, 9, 12, one (with the crown at 3 anyway)

Make sense?

Oh yeah, and that stuff too

Why didn't I think of dial feet!!

yeah... sounded like a long shot... thanks peoples!

I appreciate this site already!

Best to you all.
Martin