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help needed with pocket watch not running in dial up


Blubarb

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I have just finished assembling this pocket watch and I have hit a small wall.

It Runs in the movement up position ie:

olHeZKI.jpg?1

But when I turn it over so it's dial up, it immediately stops running. 

hr1wjEF.jpg?1

Any thoughts on what the issue might be? Any help would be appreciated. 

Thanks in advance.

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The balance wheel and or hairspring is almost surely rubbing on something in the dial up position. There could be too much end shake in the balance, or the top pivot could be damaged, bent, or broken, or the hairspring is distorted and barely clearing dial down and then rubbing dial up. 

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I would definitely check the balance staff pivots for damage. In that sense, when the watch is dial down, the weight of the balance is on the dial side pivot and can run freely. When you flip it over, the weight of the balance would then be on the possible broken pivot and it would not be able to operate freely. This would also give you an endshake problem. Best place to start is to remove the balance and inspect it carefully.

 

 

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If it is a broken pivot causing the issue, then am I correct to assume that the only solution is a new balance pivot staff? Given the age of this watch I assume that would be an impossibility and leading to the end of the road for the watch? 

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On 3/1/2018 at 9:49 AM, Blubarb said:

Found the cause... 

Is it possible to straighten the pivot without breaking it?

LZnXTz2.jpg?1

Tried to straighten it with the tiniest amount of pressure and as I and others suspected it just sheered right off. :thumbsd:  I refuse to let it be the end of the road, so how do I size and find a new arbour and perhaps a complete balance wheel, hairspring with it?? 

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A donor movement may be your only bet, you could take measurements of the staff you have and compare it to some source, but I suspect this is one of a dozen or so of nameless Swiss or European movements that unless someone recognizes it would be very hard to track down. 

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Well, I wouldn’t beat yourself up over breaking the balance staff pivot, in order for the watch to keep good time in all positions, that pivot needs to be perfectly straight. The tolerances are too precise and the objects are too small. This isn’t something you could do by hand, just sighting it in. I’m not even sure if it something that could be done with a lathe, or rather it’s just not wort it. Either way, you were gonna need to replace the balance staff. I agree with khunter, that unless you can identify this movement, and even then who knows, sourcing a donor movement maybe your only option.
Sorry, wish that I could provide a better answer. Being only a hobbiest myself, I can tell you I have gained a supreme appreciation to those that do this professionally. I myself have damaged more watches then I’ve successfully repaired. I’ve learned to live with my failures!


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    • in general this shouldn't be any change. but in general questions like this it be nice to know the specifics of the watch in other words how was it performing before it was cased up and what is it doing now.
    • just as a reminder this watch is a Swatch group product. This will bring up a problem like spare parts and technical information. that I found some links to some information on when I talk about your watch and some of the technical and basically your watch is equivalent to 2834-2 for which I'm attaching the technical sheets. But equivalent does not mean exactly the same you want to do a search on the group for C07 as we discussed this watch before including the technical differences how it's supposed to be regulated and basically because it's watch group there is no parts availability. https://calibercorner.com/eta-caliber-c07-xxx/   https://www.chrono24.com/magazine/eta-movements-from-the-2824-2-to-the-powermatic-80-p_80840/ https://www.watchuseek.com/threads/h-10-movement-details.4636991/ eta CT_2834-2_FDE_481857_15.pdf
    • people be honest.... Swatch is evil for the watchmakers and repairers, BUT not everything in watches from Switzerland is from the Swatch-Group. As far as i know, Selitta got sacked by Swatch as a Movement-Assembler for them and they started to produce Movements in their own Name with slight Modifications. As far as i know, they sell Parts to the Market for their Movements. In most cases, if a ETA-Movement fails, it is a valid Option to replace it with a Selitta Movement, which i consider the Solution for this Mess with the Swatch-Group...... I have no Connection to anybody at Selitta, but being a Swiss-Guy, i still like to have Swiss-Made Watches, but not from the Swatch-Group.   ok ? regards, Ernst
    • Just one more greedy act by Swatch. They started a number of years ago here in the US..cutting off supplies to watchmakers that could build complications that many Swatch houses couldn't even touch. Old school masters who had gone through some of the most prestigious houses in the world. Otto Frei has some statements on their page about it. I tell all my customers to avoid new Swiss watches like the plague,..unless they just want an older one in their collection that still has some parts out on the market, or they have really deep pockets and don't mind waiting months and paying through the nose to get it back. Plenty of others to choose from..IE Seiko,..or other non-swiss brands Even a number of Chinese brands are catching up with the Swiss,..and I think that in time, their actions will be their downfall
    • Yes. If that's not what you are experiencing...start looking for something rubbing. A 1st guess is that one of the hands is rubbing against the hole in the center of the dial. Especially if you now have lower amplitude in face up/ face down positions.
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