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Watch losing time at a specific minute mark


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I have a watch that is timing fairly well on the timegrapher however the minute hand slows to a near stop when it reaches the 31 minute mark.  I know the amplitude could be higher and the beat error could be a little less however I’m not sure what is happening with the minute hand.  Any suggestions?  Thanks 

2633BD61-0F51-4ABC-A8B2-B502B4F1DE46.jpeg

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7 hours ago, Nucejoe said:

  If the movement is cased ( as in the picture) minute hand might be rubbing on the glass, otherwise clean and inspect all parts mentioned above.

So this happens once every minute, simply remove the minute hand ( the hand that goes round once every minute) this is a simple  process of elimination.

In case the issue persists, the fault is within the minute train and/ or date jumper.

 

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23 hours ago, PRLJAMR said:

I have a watch that is timing fairly well on the timegrapher however

it would be nice to have background story? In other words you found this watch laying on the street and tossed it on your timing machine or you recently service this watch or what what's the background story of the watch?

Then one position timekeeping on the timing machine is not quite worthless but almost. Why don't you give us another picture crown down position just because. also the graphical display doesn't look quite as nice as it should be looking when was the last time the watch was serviced?

 

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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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